Written by experts, accurately illustrated and easy to use, Spotter s Guides are essential companions for everyone who enjoys nature. Detailed descriptions and beautiful illustrations show more than 100 fishes and further inspiration can be found using the links provided to fascinating nature websites.Written by experts, accurately illustrated and easy to use, Spotter s Guides are essential companions for everyone who enjoys nature. Detailed descriptions and beautiful illustrations show more than 100 fishes and further inspiration can be found using the links provided to fascinating nature websites.