The new edition contains a foreword by Nellie McKay, a 20th anniversary preface by Carol, 8 pages of illustrations of recent images that show the sexual politics of meat as it is expressed in popular culture.
John Coetzee has provided an endorsement of the book writing:
"The connections traced between rampant masculinity, misogyny, carnivorism, and militarism operate as powerfully today as when Carol Adams first diagnosed them twenty years ago." - J M Coetzee
The book has been completely reset, and is elegantly packaged. Here is a link to Carol's blog with 20 "nonlinear" facts about the 20th anniversary edition.