Share this Page Robert Trachtenberg 2 Total Resources 1 Books About the Author 1 Personal Website for Robert Trachtenberg Visit the Blog Share Books by Robert Trachtenberg 1 Sort by Number of Resources Number of Awards Book Title Year Published Word Count Reading Level: ATOS® Reading Level: Lexile® Add Multiple Titles to Reading List Browse books by Robert Trachtenberg When I Knew by Robert Trachtenberg 4 Resources Add to Reading List Share this Book Images courtesy of publishers, organizations, and sometimes their Twitter handles.