Aartsen, Gerard - George Adamski – A Herald for the Space Brothers, 2010

Adamski, George - Cosmic Philosophy, 1961

Adamski, George - Cosmic Science, 1957

Adamski, George - Flying Saucers Farewell, 1961

Adamski, George - Flying Saucers Have Landed, 1953

Adamski, George - Inside the Space Ships, 1955

Adamski, George - Pioneers of Space, 1949

Adamski, George - Science of Life Study Course, 1964

Adamski, George - Telepathy, 1958

Adamski, George - Wisdom of the Masters of the Far East, 1936

Alcyone (Jiddu Krishnamurti) - At the Feet of the Master, 1910

Alder, Vera Stanley - The Fifth Dimension, 1940

Alder, Vera Stanley - The Finding of the Third Eye, 1937

Alder, Vera Stanley - From the Mundane to the Magnificent, 1979

Alder, Vera Stanley - The Initiation of the World, 1939

Alder, Vera Stanley - The Secret of the Atomic Age, 1958

Alder, Vera Stanley - When Humanity Comes of Age, 1950

Alder, Vera Stanley - Wisdom in Practice, 1942