Stein is the co-founder, co-author, and CEO of Lil’ Libros, a Los Angeles-based publisher focused on chic and modern bilingual children’s books. She is also the founder of a leading national pet transportation service, 1-800-Pet-Taxi, and a mother of a young son. In 2016, Ariana was accepted to the prestigious Goldman Sachs 10,000 Small Business Program, and was nominated in the 13th Annual “Latinas in Business Awards,” honoring women of excellence. Her most recent book, with Patty Rodriguez, is "Selena."