Ralph H. Abraham / Ralph HAbraham
Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
A collection of 28 articles spanning 46 years of studies in the history and philosophy of consciousness. Inspired by psychedelics in the 1960s, many have not previously been published.Ralph Abraham is a Professor of Mathematics at the University of California at Santa Cruz.