On the Origin of Species outlines Charles Darwin's world-changing theory that life on Earth had not been brought into being by a creator, but had arisen from a single common ancestor and had evolved over time through the process of natural selection. This beautiful Macmillan Collector's Library edition of On the Origin of Species is complete and unabridged, and features an afterword by Oliver Francis. Designed to appeal to the booklover, the Macmillan Collector's Library is a series of beautiful gift editions of much loved classic titles. Macmillan Collector's Library are books to love and treasure. Received with both enthusiasm and hostility on its publication, it triggered a seismic shift in our understanding of humanity's place in the natural world. It is not only a brilliant work of science but also a clear, vivid, sometimes moving piece of popular writing that reflects both Darwin's genius and his boundless enthusiasm for our planet and its species.