The ECG-2011 Pocket Brain has evolved into our Essentials (100-pages) version. Aimed for beginning, novice AND experienced interpreters (acclaimed by students, nurses, physician assistants, EMS personnel, residents, and clinicians in practice of all specialties). Concise format includes memory aids to facilitate learning with Rapid-Find contents on the inside front cover and an ECG Summary on the back inside cover. Has been used by over 50,000 health care providers nationwide since the 1st edition came out in 1998. Ideal for individual use or as a study aid for ECG workshops, classes, or more intense courses. NOTE #1: All of my books are in B&W. Kindle versions are in full color.NOTE #2: Our new ECG-2014-PB (Expanded) has just been published! This new book provides a much more comprehensive review of the topic (260-pages; spiral-bound). TO ORDER - Go to: amazon.com/dp/1930553250/ref=rdr_ext_tmb