Books for further reading:

By RUDOLF STEINER

The Study of Man
Man in the Light of Occultism
Macrocosm and Microcosm
Supersensible Man
Spiritual Hierarchies
The Influence of Spiritual Beings upon Man
The Effects of Spiritual Development
Theosophy — An Introduction

By HERMANN POPPELBAUM

Man and Animal
A New Zoology

By WOLFGANG SCHAD

Man and Mammals

By GERBERT GROHMANN

The Plant

By STEWART EASTON

Man and the World in the Light of Anthroposophy