This anthology presents a rich selection from Darwin's most important and relevant works. Darwin's theory is laid out in a concise general introduction and followed up in short chapter introductions. Each chapter concludes with an excerpt from Darwin's correspondence, commenting on the work in question, its significance, impact, and reception. Two interesting appendices are included: Malthus' essay On Population, which proved to be a spark for Darwin's theory of natural selection, and Wallace's paper which motivated Darwin to abandon his `Big Species book' and write the Origin of Species.