It must present readers why they have to study your book and allow them to really know what they could count on; it’s an advertisement for that book. It isn't your personal statement on why you wrote the book. A book cover could be just as interesting with hardly any https://www.evernote.com/shard/s452/sh/3bcf9e7e-8b1f-0483-a1c9-b4c943f58ddf/DMY2Ul6QEDUzpAkErGCg2Isfc6ODUSRyFSoV8daqoSoUJppGrYWnwVVnmQ