Hello and Welcome to YT. "Yorkies For Dummies" is the first one I recommend. ."Yorkshire Terriers: A Smart Owners Guide" is the second book. These are excellent resource books .Another book "How to Housebreak Your Dog in 7 Days" Is very helpful. They are not as easy to housebreak.
For a pup please check out the YTCA website for reputable breeders
Yorkshire Terrier Club of America About The Club