English ↔ Spanish translator, editor & proofreader

Spanish that reads as if it had been written in Spanish.

Professional, human translation and proofreading for schools, businesses, Christian ministries and authors. English to Spanish in neutral Latin American Spanish, and Spanish to English, keeping the voice, rhythm and intention of the original.

Fiverr Vetted ProTop Rated Seller1,300+ reviews · 4.9
Marina M. Miguez Marina M. Miguez
1,300+Client reviews
4.9Average rating
85+Books translated
10+Years of daily news

Why work with a human translator

Reach 500 million Spanish speakers with a text that sounds native

Business grade

One translator, start to finish

You always talk to me, not to an agency queue. I translate, edit and proofread every word myself, with a consistent glossary across your whole project.

Proven results

1,300+ five-star reviews since 2015

Fiverr Vetted Pro and Top Rated Seller, with clients in more than 80 countries and a 4.9 average that is public and verifiable on my profile.

Neutral Spanish

Latin American Spanish that travels

A neutral register that reads naturally in Mexico, Colombia, Argentina and the U.S. Hispanic market, following RAE and Fundéu conventions.

Services

Translation and proofreading, English to Spanish and Spanish to English

Two services, both directions, one translator from the first word to the last.

Translation

English → Spanish · Spanish → English

Books, school and district documents, employee handbooks, training courses, websites and marketing content. Neutral Latin American Spanish or natural U.S. English, with a consistent glossary across the whole project.

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Proofreading & editing

Spanish or English, yours or machine-made

Texts already translated, written by a non-native author or produced with AI, brought up to publishing standard: grammar, consistency, tone and terminology, with a report of every change and why.

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Specialties

Who I work with, and what they send me

Selected clients

Corporate training and e-learning localization for global brands

Localization delivered directly or through creative and training agencies. The materials stay confidential; the type of work does not.

AutomotiveKIACorporate training, e-learning storyboards and internal communications for service networks, localized into Latin American Spanish.EN → ES
Consumer electronicsSamsungMore than 20 retail product and sales training modules, about 20,000 words, delivered ready for LMS import.EN → ES
Education technologyGoogle for EducationEnablement deck on AI in higher education, with speaker notes, localized through a creative agency.EN → ES
Brand & advertisingLay's · DoritosCampaign strategy and brand content adapted for Latin American audiences for a creative agency.EN → ES (LatAm)
KIASamsungGoogle for EducationLay'sDoritosNews-O-Matic

Published translations

Books I have translated into Spanish, by specialty

Three examples per field, 53 titles on Amazon with my name on the credits page, and dozens more for authors who publish under their own imprint.

See them on Amazon

Education & schools

For teachers, districts and educational publishers

Parenting guides, workbooks and social-emotional learning series for the classroom, plus the school documents that never reach Amazon: IEPs, evaluations, parent letters, handbooks and consent forms for U.S. districts.

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Crianza en el mundo digital by Clayton Cranford, Spanish translation by Marina M. Miguez
Crianza en el mundo digitalClayton CranfordTranslated by Marina Miguez
Funciones ejecutivas para niños con TDAH: Libro de actividades by Martin Corona & Marty Fenwick, Spanish translation by Marina M. Miguez
Funciones ejecutivas para niños con TDAH: Libro de actividadesMartin Corona & Marty FenwickTranslated by Marina Miguez
La perseverancia me hace más fuerte by Elizabeth Cole, Spanish translation by Marina M. Miguez
La perseverancia me hace más fuerteElizabeth ColeTranslated by Marina Miguez

Business & professional

For companies and business authors

Business books and memoirs for publishers in New York, and the corporate material that stays under NDA: employee handbooks, training manuals, sales enablement and internal communications.

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Éxito terminal: Memorias sobre la ambición, la mortalidad y lo que en verdad importa by Jason Mandel, Spanish translation by Marina M. Miguez
Éxito terminal: Memorias sobre la ambición, la mortalidad y lo que en verdad importaJason MandelTranslated by Marina Miguez
Transcendent Wealth (Spanish edition) by Jason G. Mandel, Spanish translation by Marina M. Miguez
Transcendent Wealth (Spanish edition)Jason G. MandelTranslated by Marina Miguez
Handbooks, training & sales enablementKIA, Samsung, Google for Education, Lay's: 20+ courses and manuals localized for Latin American teams.See the brands →

Christian & devotional

For Christian authors, publishers and ministries

Devotionals, prayer books, end-times fiction and testimonies, translated with reverence, verse-accurate Bible quotations and the elevated but clear register Spanish-speaking readers expect.

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Oración que da resultados by Robert L. Johnson, Debra Johnson, Spanish translation by Marina M. Miguez
Oración que da resultadosRobert L. Johnson, Debra JohnsonTranslated by Marina Miguez
Devocional para mujeres: 30 días para descubrir la paz en la presencia de Dios by Ada Banks (Ada Banks Books), Spanish translation by Marina M. Miguez
Devocional para mujeres: 30 días para descubrir la paz en la presencia de DiosAda Banks (Ada Banks Books)Translated by Marina Miguez
Rapto 911: Qué hacer si eres dejado atrás by Marsha Kuhnley, Spanish translation by Marina M. Miguez
Rapto 911: Qué hacer si eres dejado atrásMarsha KuhnleyTranslated by Marina Miguez

Children's books & independent authors

For picture-book authors, novelists and self-publishers

Rhyming picture books rewritten verse by verse, series with a consistent voice across every volume, novels and self-help, delivered with cover text, blurb and Amazon KDP keywords in Spanish.

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¡Los chicos no bailan!: Un cuento con rimas sobre el claqué by Alex Preston, Spanish translation by Marina M. Miguez
¡Los chicos no bailan!: Un cuento con rimas sobre el claquéAlex PrestonTranslated by Marina Miguez
El cometa Crucero visita el Sistema Solar by Samantha Cherney, Spanish translation by Marina M. Miguez
El cometa Crucero visita el Sistema SolarSamantha CherneyTranslated by Marina Miguez
Colección Pitty el gatito: Libros 1-4 by Mary Nielsen, Spanish translation by Marina M. Miguez
Colección Pitty el gatito: Libros 1-4Mary NielsenTranslated by Marina Miguez

Around the world

Clients in more than 80 countries

Orders have come from 42% of the world's countries, according to my Fiverr analytics. Hover over the map to see them light up; every line starts in Rosario.

Countries with clients Rosario, Argentina
0countries
1,600+orders from the United States
6continents

Client reviews

What authors, publishers and businesses say

A few of the 1,300+ public reviews on my Fiverr profile.

“I hired Marina to translate a full 136,000-word book from English into Spanish, and I genuinely could not be happier with the result. The Spanish reads naturally and fluently, never like a literal translation, while still remaining extremely faithful to the original voice and meaning of the book. She approached the work with a true editorial mindset.”

andyvoloschinIsrael · 136,000-word book★★★★★

“Marina is a fantastic translator with a true gift for storytelling. She captured the magic, humor, and charm of my picture book perfectly, adapting cultural expressions with creativity and care. Her translation reads naturally, sparkles with playfulness, and stays beautifully true to the heart of the original.”

simpsoneeviUnited Arab Emirates · picture books★★★★★

“I'm very happy with the translation that I received and feel confident that it was done manually and also carefully proofread for accuracy. I'm a translator myself and would highly recommend this seller to anyone seeking Spanish language work related to medical documents.”

annierwendelUnited States · medical documents★★★★★

“Marina did an outstanding job translating my book, Parenting in the Digital World, from English to Spanish. She captured not only the meaning of the words but also the tone, clarity, and intent of the message, making it accessible and engaging for Spanish-speaking readers.”

claytonpcUnited States · non-fiction book★★★★★

“Marina translated my English rhyming children's book into a Spanish rhyming children's book. Translations of rhymes are very challenging since the rhymes themselves don't translate. I'm very impressed with her bilingual poetic abilities.”

seemapatel826United States · rhyming children's books★★★★★

“Actions speak louder than words. This has been our 4th gig with this provider. That alone says enough. With all the different providers out there the fact that we continue to repeat our projects with Marina speaks volumes.”

babayuUnited States · repeat client★★★★★

“I'm THRILLED with Marina M Miguez's work on my 60,000-word eBook manuscript. Her professionalism and proactive communication made the translation process smooth, and she even added a detailed summary of the corrections she made.”

tjnossUnited States · Christian novel★★★★★

“Marina was an absolute joy to work with. Not only did she provide an excellent product, but she also went above and beyond, offering a separate report that suggested keywords and BISAC subjects in Spanish to help with placement on Amazon.”

hannemoon_hppUnited States · publisher★★★★★

“There are some tasks computers cannot do, and for this task, I'm glad I put my trust in Marina's work. She gave me a way more accurate translation than any engine could provide.”

Marina M. Miguez

About

A Spanish translator trained in California, based in Argentina

Born in Argentina, trained in California, and at my desk every morning translating for readers who deserve a Spanish that sounds like theirs. Four short chapters, scroll on.

The beginning

A classroom in California

Before translating full time I was a Spanish teacher at Soaring Eagles, a private high school in California, a math teacher aide for 6th and 7th grade, and a kindergarten teacher. That is where I learned to hear how a sentence lands on a child, a parent or a teacher, and it is still the ear I bring to every text.

I also hold an Associate Degree in Business Administration from Hartnell College (Salinas, California, 2009), which is why business and training content feels as natural to me as a picture book.

Words build worlds

Ten years of daily news for kids

For more than ten years I have translated the daily edition of News-O-Matic into Spanish: every article adapted to several grade reading levels, so the same story works for a seven-year-old and a twelve-year-old, and recorded as the Spanish audio children hear in the app. Thousands of articles, one deadline a day, and a very practical training in clarity.

10+years · News-O-Matic · every day

Found in translation

Trained for the craft

A postgraduate degree in English to Spanish Translation (Euroinnova International Online Education, Granada, Spain, 2020) gave a formal framework to what a decade of daily practice had taught me: terminology management, register, editorial conventions, and the discipline of a consistent glossary across a 136,000-word book.

  • Postgraduate in English to Spanish TranslationEuroinnova International Online Education · Granada, Spain · 2020
  • Associate Degree in Business AdministrationHartnell College · Salinas, California · 2009
  • Cambridge TKT · Teaching Knowledge TestUniversity of Cambridge · 2010
  • Lean Six Sigma · Continuous ImprovementCargill · 2015
2020Postgraduate · Translation · Granada

Accredited · recognised · trusted

Ten years on Fiverr, verified every day

I have been on Fiverr since 2015. Today I am a Vetted Pro and Top Rated Seller with more than 1,300 reviews and a 4.9 average from authors, publishers, agencies, schools and businesses in the United States, Europe, Australia and Latin America. Every review, rating and badge is public and can be checked on my profile.

4.91,300+ verified reviews · since 2015
Cover of Marina Miguez's portfolio PDF

Portfolio

Download my portfolio

Twenty-five pages in one PDF: profile and background, the brands I have worked with, the catalog of published translations with covers, and thirty verified client reviews. Ready to forward to your team.

PDF · 25 pagesEnglishUpdated September 2026

Frequently asked questions

Translating a book or a project into Spanish, explained

How much does it cost to translate a book into Spanish?

Book translation is priced per word, so the quote depends on length, genre and deadline. A rhyming picture book and a 100,000-word novel are very different jobs. Send me the manuscript and you will get word count, price and delivery date in one message, usually within a few hours.

Should I use AI or a human translator for my book?

Machine translation is fine for understanding an email. A book is read for pleasure, and readers notice a literal, flat Spanish immediately, in the reviews. I translate every sentence myself, then edit and proofread it, so the rhythm, humor and voice survive. If you already have an AI or draft translation, I also offer editing to bring it up to publishing standard.

Which Spanish do you translate into?

Neutral Latin American Spanish, the register that reads naturally in Mexico, Colombia, Argentina and the U.S. Hispanic market, following RAE and Fundéu conventions. If your readers are in Spain, tell me and I adapt vocabulary and forms of address.

What exactly do I receive?

A clean Spanish file that mirrors your original formatting (Word, PDF, PowerPoint, Excel or InDesign export), a side-by-side bilingual file so you can follow every line, and a short translator's note. For books I add the translated cover text, blurb and a Spanish keyword and BISAC list for Amazon KDP.

Do you translate children's books in rhyme?

Yes, and it is one of my favorite jobs. The rhymes themselves do not translate, so I rewrite each verse in Spanish with the same meter, story and page breaks, and I read every line aloud to check the rhythm before delivery.

Do you also translate from Spanish into English?

Yes. I translate Spanish books, exam guides, school and business documents into natural U.S. English, and I proofread English texts written by Spanish-speaking authors. Most of my work runs into Spanish, so for Spanish to English I quote each project after reading it.

Do you work with schools, e-learning and corporate training?

Yes. I was a teacher in California before translating full time, and I have localized training courses for KIA and Samsung, an education deck for Google, and school communications, IEPs and consent forms for U.S. districts. Files are delivered ready for LMS import.

Let's work together

Send me your text, in English or Spanish, and get a quote within a few hours

Word, PDF, PowerPoint, Excel or a link. Tell me who will read it and where it will be published, and you will get word count, price and delivery date in one message. Average response time on Fiverr: 2 hours.

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QR code to Marina's LinkedIn profileLinkedInlinkedin.com/in/marina-marce
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