The 2010 book is fine, it will tell you everything you need to know. The info in the book hasn't changed. If anything was changed it was only the newly recognized breeds and colors. When comparing I really didn't find any really noticeable differences That was the last book published prior to the book published the fist of this year. This is the newest book. It came out last spring. I pre-ordered mine before it was available through the APA. I was working on a much older version and decided it was time to update.

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