We have quite a few but seems we are always looking at just a couple inparticular. 1)pocket guide to marine fishes. Author Scott W. Micheal 2)The Burgess Atlas And 3) Baensch Marine Atlas These seem to a;ways get the job done for us. If not in one we can almost find it in one of the others. Don't be to surprised on the cost though they can be kind of steep especially the Burgess almost $100 whomever said knowledge is priceless never tried to buy these books.....lol