The first half of the book is very comprehensive and is itself divided into basically two parts. Part "A" (6 chapters) covers ecotourism, Hawaii's natural history (including geography and climate), habitats, parks and preserves, getting around, environmental threats, conservation and how to use the book. Part "B" covers Hawaii's animals in just the right amount of detail (and in 6 more chapters). Each chapter explores a major animal group, such as "Amphibians and Reptiles," "Birds," "Mammals," etc. The chapters are well organized and they all include the same sections for each animal group. For example, the chapter on Mammals includes Mammals of Hawai`i, Characteristics of the Mammals, Family Profiles, and an "Environmental Close-up." Each of those sections then includes common subsections. It sounds tedious, but it actually works very well!
The second half of Beletsky's guide contains the color plates used for identifying all of the species described in the first half. They are beautifully done. Each animal has a brief description along with its names (common, Hawaiian and scientific), a habitat icon and a habitat description. There are also lots of interesting "factoids" in this guidebook.
One of the more interesting "environmental close-ups" is the one on spinner dolphins. They often travel with spotted dolphins and/or tuna in what is called a "mutualistic relationship" to protect themselves against sharks. Spinners feed during the night and spotteds feed during the day, so they trade off watching for sharks. They both like tuna schools around because the tuna are better than they are at sensing the presence of sharks; when the tuna take off, so do they!
While this is an excellent guidebook overall, I do have some complaints. The key to the habitat icons isn't anywhere near the color plates or in the index; it's way back on page 77 and very hard to find. Some of the sections are actually contributed by different people and I got tired of reading the same introductory comments about Hawaii's isolation and the evolution of endemic species over and over. The habitat pictures feel like they were just "thrown in" - they aren't captioned very well and they aren't matched to the habitat icons. The plant plates also feel "thrown in" - there isn't a matching chapter on plants in the first half of the book. Fixing those items would make it a "five out of five stars" book.
