ABC School for Dogs
Basic obedience and behavior modification, with illustrated step-by-step instructions. Chapter details, author profile, testimonials and excerpts.
http://www.dogtrainingbook.com/

Ben's Black Labrador Shop
Offers a range of books about training for obedience and retrieving.
http://www.labshop.com.au/shop/

Howln Moon Press
Titles cover a range of activities including herding, tracking, competition obedience and clicker training.
http://www.hmpress.com/

The Gentle Method
A manual for stopping unwanted behavior in dogs and cats. Part of a training kit.
http://www.thuntek.net/dogtrain/

wotsthebigidea
Covers all aspects of dog obedience. Author profile and a list of other works.
http://wotsthebigidea.mysite.wanadoo-members.co.uk/