Entrepreneur. Bestselling author. Speaker.

From Barcelona to Silicon Valley.

Joshua Ariel wrote his bestseller at 22. His books have inspired readers in more than 35 countries.

Joshua Ariel
As featured in Forbes Entrepreneur El País El Mundo New York Public Library Penguin Random House

Entrepreneur, writer, and a name on two continents.

Joshua Ariel is an entrepreneur and internationally bestselling author whose books have inspired readers in more than 35 countries. His work has been featured in Forbes, Entrepreneur, El País and El Mundo, and his books are held in the collections of major institutions, including the New York Public Library.

Joshua is from Spain. He studied business and commerce (Grado de Comercio) at Universidad Complutense de Madrid from 2009 to 2014, awarded for academic excellence with extra credits for writing a business book. Diario Emprendedor, written at 22, was published by Penguin Random House in 2014. In September 2014 the City of Torrejón de Ardoz gave it a book award.

Today he lives in Miami. He is Chief Executive Officer of Earth Technologies Inc. in Coral Gables, founder of the technology growth agency RenderingX and an investor in Zerobolas. In 2023 he received the Máxima Presea Orgullo Latino award from Orgullo Migrante. His new book, Entreprenaut, is published by Simon & Schuster in 2026.

Also published as Joshua A. Aguilar in the Spanish and Catalan editions. Same author, same books.
22years old when he wrote his bestseller
35+countries where his books are published
100k+readers

Timeline

2009Begins the Grado de Comercio at Universidad Complutense de Madrid (2009 to 2014). Awarded for academic excellence.
2014Diario Emprendedor, written at 22, is published by Penguin Random House / Debolsillo.
2014Book Award for Diario Emprendedor from the City of Torrejón de Ardoz, Madrid.
2019El millonario de Silicon Valley, Penguin Random House México edition.
2020Chief Executive Officer of Earth Technologies Inc., Coral Gables, Florida.
2020Executive education in leadership at Leaders Excellence at Harvard Square.
2020Fellow of Founders Network, a private community of tech startup founders.
2023Investor in Zerobolas, a marketplace for products, homes and vehicles.
2024Founds RenderingX in Miami: AI agents, AWS cloud, paid advertising and Shopify commerce.
2026Entreprenaut is published by Simon & Schuster.

Registered marks

Registered trademarks in the United States and Spain.

  • Earth TechnologiesUS 86774982, 2015
  • Niños emprendedoresES 3008051, 2011
  • La escuela de niños emprendedoresES 3007844, 2011

Community

  • Ambassador · FunsepaSergio Paiz Foundation, Central America. Technology and education for children. Since 2018.
  • Mentor · Niños EmprendedoresBarcelona, 2013. Talks to children about challenges, entrepreneurship and positive thinking.
  • Fellow · Founders NetworkPrivate community of tech startup founders. Since 2020.

Languages

Catalan and Spanish, native. English, full professional.

Rich Before Rich

Become rich in mind long before you are rich in money.

Rich Before Rich is a movement for a new generation of entrepreneurs, and the home for Joshua Ariel's books.

Where others see risk, they see opportunity.

Where others hesitate, they move forward.

Where others chase success, they pursue purpose.

Mindset first

Wealth begins as a way of thinking. Diario Emprendedor turns that mindset into a daily practice before the first dollar arrives.

Built to act

More than a brand: a practical method. From the new book to the companion journals, ideas you read, then put to work.

For every language

Published in 35+ countries and read in English, Spanish and Catalan by hundreds of thousands.

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The books

Discover the mindset, habits, and decisions that set successful entrepreneurs apart, and learn how to apply them to your own life and business.

Diario Emprendedor and El millonario de Silicon Valley
Diario Emprendedor

Diario Emprendedor

Penguin Random House / Debolsillo, since 2014

The international bestseller he wrote at 22. Thirty chapters of stories, examples and reflection prompts. Whether you're launching your first venture or pursuing a bigger vision, Diario Emprendedor gives you a structure to think clearly, act consistently and turn ideas into movement.

El millonario de Silicon Valley

El millonario de Silicon Valley

Marcombo. Penguin Random House México, 2019

On building wealth the founder's way. Lessons from the world's most ambitious tech ecosystem on mindset, money and the making of a modern entrepreneur. Sophie, an entrepreneur who wants to achieve success. Larry, a wise retired billionaire. This book will teach you the secrets that could bring you happiness and wealth.

Entreprenaut

Simon & Schuster, 2026

An Entreprenaut, a blend of entrepreneur and astronaut, is someone who ventures into the unknown to create what does not yet exist. Where others see risk, they see opportunity. Where others hesitate, they move forward. Where others chase success, they pursue purpose.

Diario Emprendedor is also published in Catalan (Diari emprenedor), French and Italian, and as an audiobook narrated by Mario Castañeda.

From the page to the stage

Ideas that fill the room.

Beyond the books, Joshua takes the Rich Before Rich philosophy to stages and audiences around the world.

Watch on Instagram
Robert Kiyosaki
“Each of us controls only one thing: ourselves. Anyone with a dream should read this book.”
Robert Kiyosaki, author of Rich Dad Poor Dad, on Diario Emprendedor
Photo: Gage Skidmore, CC BY-SA 3.0

Instagram

@thejoshuaariel. Author. Find my books at your favorite bookstore.

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Get in touch

For speaking, press and publishing inquiries, write to Joshua on Instagram, X or LinkedIn.