Such is the title of the latest book from equally adored/abhored author Dave Eggers. Hear him discuss What Is the What tonight at the Central Library. His book is the choice for this year's One Book, One Philadelphia program, which aims to increase awareness about literacy and libraries. Eggers is the literary darling that some people love to hate. We admit that his ubiquitous presence around the time that A Heartbreaking Work of Staggering Genius......