Adding some 20 percent to the original content, this is a completely updated edition of Steven Weisenburger's indispensable guide to Thomas Pynchon's Gravity's Rainbow. Weisenburger takes the reader page by page, often line by line, through the welter of historical references, scientific data, cultural fragments, anthropological research, jokes, and puns around which Pynchon wove his story.
Weisenburger fully annotates Pynchon's use of languages ranging from Russian and Hebrew to such subdialects of English as 1940s street talk, drug lingo, and military slang as well as the more obscure terminology of black magic, Rosicrucianism, and Pavlovian psychology.
The Companion also reveals the underlying organization of Gravity's Rainbow - how the book's myriad references form patterns of meaning and structure that have eluded both admirers and critics of the novel.
The Companion is keyed to the pages of the principal American editions of Gravity's Rainbow: Viking/Penguin (1973), Bantam (1974), and the special, repaginated Penguin paperback (2000) honoring the novel as one of twenty "Great Books of the Twentieth Century."
Essential to take along on your trip through "The Zone". To paraphrase American Express, "If reading Gravity's Rainbow, don't leave home without it." It's a pain in the ass to lug both books around, but you'll be glad you did.
Weisenburger's effort has to be saluted, especially due to the year of publication - nowadays the many little deatils and facts can be verified in seconds, whereas then it was probably much more difficult. So we can pardon the omissions or errors (the Phoebus cartel was indeed real) and let this companion be what it really is - the basis for a lot of Gravity's Rainbow research, such as the GR page on Pynchonwiki, which is based on this book with significant work by Don Larsson and other fan or scholarly oriented writing. The second edition probably takes care of the many errors and inaccuracies, I can't recommend the companion to any first time reader, the second reading is actually quite illuminating with this book.