This book, "Muchas Vidas, Muchos Maestros" by Brian L. Weiss, is a nonfiction narrative that explores topics related to mind, body, and spirit, as well as psychology and personal growth. Published in 1997 by Biblioteca de Bolsillo in Spain and written originally in English.  The original title was "Many Lives, Many Masters" translated into the Spanish by Edith Zilli.   It is a vintage trade paperback that measures 5.5in x 8in x .75in and weighs 10.6 Oz. The book contains 256 pages and covers topics related to inspiration and personal growth.  It is in excellent used condition.  Fast, free shipping.