This is a fascinating story of the murder of a 22-year-old graduate student in the stacks of the main Penn State University Library during Thanksgiving vacation in 1969. The author, who grew up in the same town as the victim, reconstructs the murder, describes the official attempts to solve the crime, analyzes why the murder was not solved by the officials and provides a biography of both the victim and the probable killer. Although the murder was never officially solved, both Derek Sherwood, who wrote Who Killed Betsy, an earlier account of the murder, and Mr. DeKok, a journalist, both identified the same man as the probable murderer, which was unofficially confirmed by the State Police in 2010. Mr. DeKok's book is well-written and well-researched with numerous endnotes and index; it is far superior to Mr. Sherwood's book which is not as well written and lacks endnotes and index. My only negative criticism of Murder in the Stacks is Mr. DeKok's indiscriminate use of the word "librarian," which he uses for practically anyone working in the library. ( )