On the Origin of Species | Charles Darwin

An instant bestseller in 1859, few books have had such a revolutionary impact and left such a lasting impression as On the Origin of Species.The text is taken from the second edition (1860), which is the same as the first except for some minor corrections and so is the purest distillation of Darwin's original vision. It includes the introductory appendix, 'An Historical Sketch of the Recent Progress of Opinion on the Origin', which first appeared in the third edition (1861).