With more than a million books in print david d busch is the worlds 1 selling digital camera guide author and the originator of popular digital photography series like david buschs pro secrets and david buschs quick snap guides he has written more than a dozen hugely successful guidebooks for canon and canon digital slr models as well as many popular books devoted to dslrs including . Read david buschs canon eos 7d guide to digital slr photography david buschs digital photography. His canon 7d guide to digital slr photography has 473 pages happily its a very readable guide and trust me unless you are an old hand at dslrs you need this book i have read about 200 pages already and do find quite a bit of stuff which i know well enough but more information specific to the 7d which is absolutely a must know. David busch s canon eos 7d guide to digital slr photography by david d busch 428 avg rating 108 ratings published 2010 6 editions