Mad as the Devil! (1975, Warner Books)

Mad as the Devil! ran for 3 issues (1975–1975). Labeled #5 on the cover only. This is the fifth paperback of original Mad cartoons by Sergio Aragonés, so that is probably what the #5 refers to. If the above is correct, the previous book is [gcd_link_series](216291) which is not numbered, and the subsequent book is [gcd_link_series](66148) which is numbered #6 on the spine. Copyright © 1975 by Sergio Aragonés & E. C. Publications, Inc.