Zapoppin Media, the publisher of GuitarPR has announced the release a the book, The Guitar Wall Guide by its creator, Jeffrey D Brown. Also known as The Wallmaster, Brown has compiled not only an historical chronology of sorts about his 3 1/2-year journey building the Wall, but a very complete collection of source lists for all of the walls (over 40 of them). This information is not available anywhere else in this format.