Without duplicating the book description, I'll just explain why I would recommend this book to anyone interested in conservation.
Although the creation of Guanacaste Conservation Area -- which combines pre-existing national parks and added land between and around them, along with a marine sector -- is unique in representing the world's only large-scale tropical forest restoration project, the story illustrates elements common to nature conservation projects in general. These include the importance of understanding the local ecology (in this case, especially forest succession and the necessity of controlling fires); political aspects, both local and national (Costa Rican president, parks service, etc.); how money is raised and land purchased or otherwise secured; and ways of involving people from the local area in conservation and the importance of that.
I have just returned from Guanacaste and was impressed by the program that trains local people as "parataxonomists" to help with the huge task of identifying and cataloguing the area's many species. Another program gives instruction on natural history to children in local schools. The result has been an important cultural shift toward appreciating nature and the many benefits it provides.
The writing is sometimes long-winded and ponderous, but the careful recounting of details was worthwhile, and the integration of interesting snippets of tropical biology and anectodes of the people involved made it an enjoyable read.
Of particular interest as well was the recounting of the reaction to the revolutionary suggestion that tropical forest can indeed be restored on land taken out of agriculture, an assertion that initially met with skepticism and alarm from conservation organizations, as it conflicted with the conservation message that a tropical forest, once cut down, can "never" regenerate.
In this end, this is a great and stirring conservation success story. The book illustrates how much hard work that entailed on the part of many dedicated people.