Ruth Tepper Brown is a writer/editor who specializes in demystifying science for people of all ages. A longtime editor and media manager at the celebrated San Francisco Exploratorium, Ruth helped create award-winning books, websites, and communications of every shape and size. Now a consultant in the San Francisco Bay Area, she has worked on publications for the Schwab Learning Foundation, Golden Gate National Parks, UC Berkeley, Chronicle Books, Klutz Press, and more.

Franco Tempesta was born in Milan, Italy. Since he was a child, he loved drawing animals, dinosaurs, and dragons. Specializing in naturalistic illustration, in the last ten years he has focused his attention on the realization of realistic images of dinosaurs and primitive mammals. He has collaborated with national and foreign publishers, such as Smithsonian, National Geographic, Random House, Firecrest Publishing, Geoworld, and important advertising agencies of Italy. Since 1990, he has been a member of the Italian Illustrators Association. In April 2014, the Museum of Paleontology of Naples hosted a permanent exhibition dedicated to his illustrations of dinosaurs. Franco Tempesta loves nature, the sea, diving, and traveling.