Cart
Free Shipping on all orders in Australia
Over 7 million books in stock
We aim to be carbon neutral by 2022

Books by Carl Johan Calleman, PhD

Carl Johan Calleman holds a Ph.D. in physical biology from the University of Stockholm. He has been a senior researcher at the University of Washington and has served as a cancer expert for the World Health Organization. He is, also, a leading expert on the Mayan Calendar and is the author of The Mayan Calendar and the Transformation of Consciousness and The Mayan Calendar.