DG De Gregorio El Cajon Flamenco, Textbook for Cajon, Flamenco theory, Techniques, accompaniments, and solos on the cajon, By and with Paquito Gonzalez, ISBN 8034023230320, Format: DIN A4, 30 Pages, Includes 2 DVDs (Playtime 174 min.), In German, English, French, Italian, Japanese, and Spanish languages