Born in Barcelona on December 23, 1975, Roger Olmos became interested in the world of illustration from a very young age, when he started spending time in his father's studio at home where he watched him drawing and painting.

[1] After attending the Llotja Avinyò School of Arts and Crafts in Barcelona from 1995 to 2000, he started a six-year apprenticeship as a scientific illustrator at the Dexeus Clinic in Barcelona, during which he learned a lot about textures and anatomy.

Since then he has illustrated more than eighty books for many Spanish and international publishers such as: Edelvives, Penguin Random House, Macmillan, Kalandraka, Oqo Editora, Ediciones B, La Galera, Teide, Anaya, Edebé, Planeta, Baula, #logosedizioni, Melhoramentos, Bromera, Editions 62, Pirouette etc.

He is a vegan and an animal-rights activist, and he actively collaborates with FAADA (Foundation for the Counselling and Action in Defense of Animals, based in Barcelona).

This collaboration led to the publication of two books, both published by #logosedizioni (Italy): Sinpalabras / Senzaparole (Wordless) in 2014,[2] praised by the like of Jane Goodall and J. M. Coetzee,[3] and which Roger has described as “one of the most important and personal books of my career”,[4] and Amigos in 2017.