Book excerpt: Here's a source of guidance on the analysis of the hemodynamic waveforms generated in the cardiac catheterization lab. It progresses from a review of basic monitoring principles and normal waveforms through an assessment of the waveform data associated with the full range of individual coronary diseases, providing the assistance needed to accurately interpret any findings encountered in practice. Its extremely clinically oriented approach makes it an ideal hands-on tool for any clinician involved in diagnosing cardiac problems using interventional cardiology.