An unofficial and unauthorized work of news reporting summarizing what is currently known and speculated about "Harry Potter and the Half-Blood Prince" (tm), book six in J.K. Rowling's Harry Potter series. The author, W.F. Zimmerman, has read, analyzed, and synthesized literally thousands of news articles, Usenet postings, blogs, and on-line chats, including every public comment by J. K. Rowling since 1997.

The book is divided into five parts: 1) information specifically about Harry Potter book six, 2) information pertaining to both books six and seven, 3) information pertaining to book seven alone, 4) information about books by J. K. Rowling beyond book seven, and 5) tips on how to have fun while you wait. An Appendix contains the Frequently Asked Questions (FAQ) document from the Usenet group alt.fan.harry-potter, which contains useful information pertaining to all seven books in the series.