Excellent list MerlinsMum! I’ve read most of the items on there, but a few definitely stand out. Brenda Aloff’s book on Canine Body Language is marvellous and I’d probably choose that one before Barbara Handelman's, though ideally you’ll get them both! I’ve just upgraded to the latest edition of the Handelman and was pleased to see a huge improvement in the picture quality. I can also endorse Katie’s enthusiasm for Leslie McDevitt’s book – it’s such an inspired read and should definitely be on everyone’s essential list

Some of my own recent favourites (I’ll try to add reviews later, time permitting, but meanwhile I’ve just added links):

Adam Mikloso - Dog Behaviour, Evolution, and Cognition
Infopet|| Books: Dogs: Extended review: Adam Miklosi

Vilmos Csanyi – If Dogs Could Talk
If Dogs Could Talk: Exploring the Canine Mind: Amazon.co.uk: Vilmos Csanyi: Books

Alexandra Semyonova - The 100 Silliest Things People Say About Dogs
A brilliant debunking of the many myths which still haunt the dog world:
Alexandra Semyonova - BEYOND CESAR MILLAN

Cheryl Smith - The Rosetta Bone: The Key to Communications Between Canines and Humans
Welcome to Dogwise.com

Linda Tellington-Jones – Getting in Ttouch With Your Dog
Getting in TTouch with Your Dog: How to Influence Behaviour, Health and Performance: How to Understand and Influence Behaviour, Personality and Health: Amazon.co.uk: Linda Tellington-Jones: Books

Alexandra Horowitz - Inside of a Dog: What Dogs See, Smell, and Know
http://www.nytimes.com/2009/09/13/bo.../Schine-t.html

Further reading:

Behaviour and training book reviews

Training/Behaviour Books

Will these books help me

Dog Obedience - what book to begin with?

Wow - many more to add to my wish list now. I have some of them but not read them all yet. The last I read was the Culture Clash and I loved this. Just started Click to calm and seems good so far. I also enjoy alot of the TTouch books too.