David Abraham Adler (born April 10, 1947) is an American writer of 265 books for children and young adults, most notably the Cam Jansen mystery series, the "Picture Book of..." series, and several acclaimed works about the Holocaust for young readers. Biography Adler was born in New York. He graduated from Queens College in 1968 with a bachelor's degree in economics and education. For the next nine years, he worked as a mathematics teacher for the New York City Board of Education, while taking classes towards a master's degree in marketing, a degree he was awarded by New York University in 1971. In that same year, a question from his then-three-year-old nephew inspired Adler to write his first story, A Little at a Time, subsequently published by Random House in 1976. Adler's next project, a series of math books, drew on his experience as a math teacher. In 1977, he created his most famous character, Cam Jansen, originally featured in Cam Jansen and the Mystery of the Stolen Diamonds, which was first published in 1980 and is still in print along with more than 50 other Cam Jansen Mysteries. Worldwide, more than 30,000,000 Cams have been printed and sold. Adler married psychologist Renee Hamada in 1973, and their first child, Michael, was born in 1977. By that time Adler had taken a break from teaching and, while his wife continued her work, he stayed home, took care of Michael, and began a full-time writing career. Adler's son, Michael S. Adler, is now the co-author of several books with his father, including A Picture Book of Sam Adams, A Picture Book of John Hancock, and A Picture Book of James and Dolly Madison. Another son, Edward, was the inspiration for Adler's Andy Russell series, with the events described in the series loosely based on adventures the Adler family had with Edward's enthusiasm and his pets. In January 2016, Adler (together with illustrator Sam Ricks) won the prestigious Theodor Seuss Geisel award for the 2015 book Don't Throw It To Mo! David on David "I am the second of six children, all very close in age. My parents encouraged each of us to be an individual. It was their way of lessening the competition between us. As a child, I was known as a family artist. Paintings and drawings I did when I was as young as twelve still hang in my