La Llamada de la Nueva Era/ The Call of the New Era : Hacia Una Espiritualidad Mistico-esoterica, Paperback by Merlo, Vicente, ISBN 8472456420, ISBN-13 9788472456426, Like New Used, Free shipping in the US

Examines the phenomena of New Age spirituality, looking into what the author considers to be the movement's three main aspects: its oriental influences, the influence of psychotherapy, and the influence of esotericism.