At the Gates of Spiritual Science (Lectures Section)

These early lectures are a good introduction to the ideas and content of anthroposophy. Steiner covers a wide range of topics including the being of man, the three worlds, life after death, karma, the evolutionary epochs, and the path of inner development. This book is an excellent complement to the basic books. Link: http://wn.rsarchive.org/Lectures/GateSpiSci/GateSS_index.html