The Craft of Research - 2nd Edition by Wayne C. Booth, Gregory G. Colomb and Joseph M. Williams

Definitely a must read for beginner researchers. However, it is not just for beginners. Any research - and for that matter non-research - would benefit from the tips and tricks present in this how-to-write/present-research guide. I give it an A+. Wish I'd read it 6 years ago!