Chapter 1. Classification of Pulmonary Hypertension -- Chapter 2. Genetics and Pharmacogenomics in Pulmonary Arterial Hypertension -- Chapter 3. Diagnostic Dilemmas in Pulmonary Hypertension -- Chapter 4. Imaging in the Evaluation of Pulmonary Artery Hemodynamics and Right Ventricular Structure and Function -- Chapter 5. Prognostication in Pulmonary Arterial Hypertension -- Chapter 6. Pharmacotherapy for Pulmonary Arterial Hypertension -- Chapter 7. Right Ventricular Remodeling in Pulmonary Hypertension -- Chapter 8. Pulmonary Arterial Hypertension in Connective Tissue Diseases -- Chapter 9. Congenital Heart Disease and Pulmonary Hypertension