Brenda Aloff- Positive Reinforcement Dog Training Author
Brenda Aloff has had the most influence on me when it comes to working and training dogs. She is a positive reinforcement trainer and specializes in dog behavioral issues. She has written the best books on dogs, dog psychology, dog behavioral issues and dog body language.
Her books are very technical but her solutions are excellent. She has a great book on puppy training and how to work on issues you might have acclimating your pup to your household.
Here is a link to her website and in particular, her books that she has written. The books I highly recommend are the ones on puppy training, positive reinforcement and dog body language.
If you buy any books related to dogs, these are some of the best available. http://brendaaloff.com/books.html