A fantastic "quick & dirty" reference tool! The PERFECT aid for persons in the online auction selling business. For example, I had a lovely antique plate that I wanted to put up for auction. This particular plate featured a bird sitting in a tree. I got out my trusty Fandex Bird Guide and there it was ... a Yellow Warbler. I then got out my equally trusty Fandex Tree Guide and there it was ... the Downy Hawthorne Tree. Therefore, instead of describing my treasure as a plain ol' "Bird Sitting in Tree - Plate", I was able to give it the justice it deserved and described it as a "Lovely Yellow Warbler Nesting Atop a Downy Hawthorne Branch - Plate".