Printed guides, a la Neal Wyatt:  "A read-around starts with a specific initial title and then expands outward to include fiction and nonfiction, read-alikes, and supporting materials such as works that focus on important aspects of the initial title, books, that further illuminate cntral themes, and titles that provide contextual support."  

   (The readers' advisory guide to nonfiction, by Neal Wyatt.  ALA, 2007)

Lincoln Read Around  (For his 200th birthday in 2009)