What are some good books to get to learn more about the breed?
Kerry mentioned the ABC website, which is a good place to start. You can order ABC DVDs or booklets here - "Judging the Boxer" is a good one for understanding the breed standard:
http://www.americanboxerclub.org/order.html
Also, some other resources and book lists are here:
http://www.americanboxerclub.org/boxersites.html
how to make sure you are bettering the breed?
Know the standard, know how your dog(s) compare to the standard (this involves seeking objective evaluations from experts in the breed), do the recommended health screening, be sure temperaments are solid, choose a mate that is strong where your dog is weak and don't double-up on weaknesses, be careful about where your puppies end up, be honest about how your puppies turn out and whether they represent an improvement on the parents. Always leave the breed in better shape - health, temperament, and structure - than you found it.
how to find a mentor because their is no one in my area that has boxers?
Most of the time the breeder you buy your first show/breeding prospect from will be a mentor. You may need to expand beyond your home town to find a responsible Boxer breeder, but there are a number of them in your state and more in neighboring states.
how to Research the pedigree?
This will come in part from developing a relationship with a successful, established, responsible breeder (there are, unfortunately, many instances of 'newbies' mentoring 'newbies' - if you're serious about becoming a "good" breeder, you need to work with someone who has a proven track record) - they will know their own lines well, of course, and will also know about many other lines. As time goes on, your sincerity, honesty, and proven dedication to the breed will make it easier for other breeders to share information about their lines or lines that they know. As well, many of the DVDs on the ABC website show dogs who are in most (if not all) pedigrees in this country today, and so you can get some idea of the structure of these past dogs.
It is a long learning process, one that really never ends.
