Glenn finds all of these resources useful for various reasons:
Natural Beekeeping: Organic Approaches to Modern Apiculture by Ross Conrad
The Honey Bee: A Guide for Beekeepers by V.R. Vickery
Beekeeping For Dummies – A Basic beekeeping 101 resource.
For inspiration, I recommend:
the Way to Bee: Mediatation and the Art of Beekeeping by Mark Magill
The Beekeeper’s Lament by Hannah Nordhaus