Being offered is a set of four soft cover books, each just over 5.25"x8.25" in size, and having a two-staple spine. The cover colors of each, and just some of the topics included in that book are: Book I - blue cover: Anatomy of the Heart and Conduction, Measuring Rates and Intervals - Guide, Atrial Arrhythmias; Book II - white cover:Bundle Branch Block and Venticular Premature Beats, Ventricular Tachycardia, AV Block Treatment of Venrticular Arrhythmias; Book III - green cover: Artificial Pacemaker, Cardiopulmonary Resuscitation, Diagnosing an Infarction, Admission to Critical Care; Book IV - Orange cover: Congestive Heart Failure & Pulmonary Edema, Cardiogenic Shock, Drugs in Coronary Care, Education of the Patient and His Family. There is a card in each issue, to send in and order the next book. Book IV has a card to send in to order Book V. This is a set of Book I, II, III and IV.