A very readable autobiography of the co-founder of evolution which is better than a lot of fiction I have read. Of particular interest are Wallace's friendships with many promenent men such as Lyell, Darwin and Huxley. The accounts of his naturalist expeditions to Asia, Australia and South America have some adventure. His dedication to happily studying nature in all aspects is inspiration. With all the positive in Wallce's character it is sobering to see his racisim and backwards ideas, which should serve as a guide to humility to all of us.
This is an excellent scientific study which methodically argues several strains of evidence to support the overarching theory. The arguments are very well supported with many graphs and data tables.