The Pen and Paper Diet: US English Edition 
ISBN 978-0-557-05147-2
http://www.lulu.com/content/paperback_book/the_pen_and_paper_diet_us_english_edition/6405713

The Pen and Paper Diet: Expanded US English Edition
ISBN 978-1-4357-1813-5
http://www.lulu.com/content/paperback_book/the_pen_and_paper_diet_expanded_us_english_edition/2520591

La Dieta de la Pluma y el Papel: Edicion en Espanol de EE.UU.
(US Spanish Edition) 
ISBN 978-0-557-04789-5
http://www.lulu.com/content/paperback_book/la_dieta_de_la_pluma_y_el_papel_edici%c3%b3n_en_espa%c3%b1ol_de_eeuu/2631495

The Pen and Paper Diet: Metric Edition 
ISBN 978-0-557-05523-4
http://www.lulu.com/content/paperback_book/the_pen_and_paper_diet_metric_edition/6376980

The Pen and Paper Diet: Expanded Metric Edition
ISBN 978-1-4357-1913-2
http://www.lulu.com/content/paperback_book/the_pen_and_paper_diet_expanded_metric_edition/2609111