This is a very informative survey-level history of Baptist churches, associations, missionary groups, etc. through the end of the twentieth century.
The weakness is that the editing and the publication quality are unacceptably poor. With the extreme number and degree of typos that reduce entire paragraphs to near-gibberish, it's probably not the author's (a history professor) fault and possibly not even the editor's; someone or something probably screwed up in the printing process. If author Bill Leonard publishes a revised version, hopefully he uses another publisher, because this edition's publisher, a Judson Press, looks amateurish.