The Orchard Mason Bee Book by Brian Griffin - Complete Guide to Raising Mason Bees for Pollination & Gardening

This primer has become a definitive text on keeping Mason Bees.  The Author, Brian Griffin, was a pioneer on the systematic management of mason bees for pollination.  It is a treat to read this classic by a man speaking from real experience.  Even though illustrations are just line drawings, they are nicely done.  This is an excellent text. Highly recommended.