The goal is to outline the original proof of the classification of the finite simple groups for non-specialist readers. The project began with Daniel Gorenstein's 1983 book with the same title, but designated volume one. It addressed groups of non-characteristic 2 type. This is the second volume, and discusses the treatment of groups of characteristic 2 type. Among the topics are the classification of groups of Gorenstein-Walter type, the classification of quasi-thin groups, the pre-trichotomy and trichotomy theorems, and eliminating the uniqueness case. Annotation ©2011 Book News, Inc., Portland, OR (booknews.com)