There are a number of woodcarving books on Fishing Lures. Most web sites with books have a list.
You can also search www.woodcarvingillustrated.com for a list of articles. Also try http://carverscompanion.com/Ezine
Ebay is always a vast source of anything. Another area is book publishers. These two specialize in craft and wood carving books.
www.foxchapelpublishing.com and www.schifferbooks.com
You can also try the various book stores web sites, such as Barnes & Noble.com, Amazon.com (with Borders) and www.alibris.com/search/books .
A final suggestion is to connect with a local carving club. They will be very willing to help and you can joibn and learn a great deal. Carvers are universally very willing to share and teach. They are a great group of individuals;worldwide.
Good Luck!
woodcutr