I have kept bees commercially in South America and New Zealand for many years and I didn't think that any new beekeeping book would teach me much more about beekeeping. However a colleague recommended 'A Practical manual of Beekeeping' and I'm very glad that I read it. I learned an enormous amount. What other beekeeping manual will tell you how to safely make invert sugar syrup, or how to easily test for HMF levels in your own honey or how to test for Nosema in the field and David Cramp introduces bee genetics in a way that even I can understand - and there is so much more it is that comprehensive. Certainly no other book that I have read (and I have read most) has so much useful, practical, up to date and science based information on beekeeping. I really recommend it for both experienced and novice beekeepers whether commercial or hobbyists. It is easy to read, very comprehensive, written with humour and written by a very experienced and knowledgeable beekeeper and like the same authors 'Beekeepers Field Guide' this book will stay by my side while I continue beekeeping.