This document contains mnemonics and summaries to aid in remembering various concepts in cardiology. It includes summaries of aortic stenosis characteristics, management of myocardial infarction, causes of pericarditis, heart compensatory mechanisms, distinguishing right and left heart murmurs, causes of ST elevation on ECG, Beck's triad signs, and treatment for myocardial infarction. It also includes mnemonics for jugular venous pressure causes, depressed ST-segment causes, innocent murmur features, murmur locations, cardioselective betablockers, and more.