This updated CD-ROM/workbook package provides a thorough, interactive tutorial on electrocardiogram interpretation and a comprehensive, easily navigable reference library of common and uncommon electrocardiograms. The CD-ROM, updated to the Flash platform, contains 630 ECGs grouped into three levels of complexity: beginning, intermediate, and advanced. Each tracing is labeled with color-coded annotation arrows and accompanied by a clinical history, interpretation, and list of diagnostic keywords. The keywords can be used for quick searches when retrieving examples of specific electrocardiogram findings and diagnoses. At the end of each level are 10 non-disclosed tracings with multiple-choice questions. The workbook contains reproductions of each electrocardiogram on the CD-ROM. The user will examine the workbook, then code the answer into the CD-ROM and receive immediate feedback.