Soledad Romero Mariño worked in advertising before following her passion for books and founding her own publishing house. She is the author of the Cycles of the Universe series and lives in Barcelona, Spain. Visit her website at or follow her on Instagram @soledadromeromarino.

Renee Hao was born in Wuhan, China, and was educated in Shanghai, where she currently resides. She worked for many years as a graphic designer in the advertising industry, but in 2020 she decided to devote herself entirely to illustration. Follow her on Instagram @renee.hao.

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