There are two seasons in Costa Rica: the wet season and the more wet season. This guide, while useful, wicked water into the print and was wet inside my backpack. We saw and identified a number of species with this booklet, but there are also a lot more common species that aren't listed. Can't have it all in 6 pages! If you want detail, buy an actual book. If you want convenience, buy this, but don't get it wet.