As research for this book, I read:
* Every on-line chat that J. K. Rowling has ever done.
* Hundreds of news articles mentioning the quoted phrase "Half-Blood Prince" in a leading news warehouse and more hundreds of articles identified by Google News as mentioning the quoted phrase "Half-Blood Prince."
* Hundreds of blogs mentioning the quoted phrase "Half-Blood Prince" in the blog search engine Feedster.
* Hundreds of posts on dozens of Potter-related websites. * Dozens of trademark applications at the UK and US patent offices.
* Numerous biographies and critical works about J. K. Rowling.
* And, of course, the entire series to date!
This book contains the results of my research. Over the years and especially after publication of "Half-Blood Prince", J. K. Rowling and others have let slip quite a bit of information about the series. I think I was able to pull together a lot of interesting information. You will notice that there are many quotations and that wherever possible I have provided an "attribution"—that is, I have identified author, title, date, and place of publication (often Internet). That way, you can judge for yourself whether my sources are solid.
