Book excerpt: In this issue of Heart Failure Clinics, guest editor Dr. Scott Visovatti brings his considerable expertise to the topic of Exercise Testing in Pulmonary Hypertension and Heart Failure. Top experts in the field discuss the invasive cardiopulmonary exercise test; cardiopulmonary exercise testing in advanced heart failure management; exercise testing in elite athletes; cardiopulmonary exercise testing in pulmonary hypertension; and much more. Contains 10 relevant, practice-oriented topics including case studies in cardiovascular exercise testing; cardiopulmonary exercise testing in research; non-invasive assessment of the pulmonary circulation-right ventricular functional unit: diagnostic and prognostic implications; and more. Provides in-depth clinical reviews on exercise testing in pulmonary hypertension and heart failure, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.