I request the book be purchased directly from the printer.  I intend to create a non-profit Autism Therapy Institute in the near future which will provide a free week of seminars and interactive therapy sessions with families.  Families will solely be responsible for getting to Tucson and providing for their stay in the city during the week.  I receive more royalties per book when it is bought directly from the printer so this will help me fund this effort.
Visit the links below to buy directly from the publisher.  Also, a second edition has been created for the basic versions of the book (non-expanded versions).  If you bought the first edition, just send me a scanned receipt and I'll send you the minor additions to the book.


The book can also be found at sale prices at:
http://www.bookfinder4u.com/search_author/%22michael_dow%22.html 


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