Mosca, Julia Finley: - Julia Finley Mosca is a copywriter and former journalist who spent more than a decade in Hollywood crafting messages for money. After working with such recognizable brands as Entertainment Tonight, Yahoo!, American Greetings, and JibJab, she landed her most rewarding job yet--mom to one ferociously curious and spunky little girl. The Amazing Scientists series marks Mosca's debut into the magical world of children's books.