The Practical Beekeeper Volume III Advanced Beekeeping Naturally
Michael Bush has had an eclectic set of careers from printing and graphic arts, to construction to computer programming and a few more in between. Currently he is working in computers. He has been keeping bees since the mid 70's, usually from two to seven hives up until the year 2000. Varroa forced more experimentation which required more hives and the number has grown steadily over the years from then. By 2008 it was about 200 hives. He is active on many of the Beekeeping forums with last  count at about 45,000 posts between all of them."His writing is like his  talks, with more content, detail, and depth than one would think possible with such few words...his website and PowerPoint presentations are the gold standard for diverse and common sense beekeeping practices."--Dean Stiglitz