Molecular Imaging and Targeted Therapy: Introduction -- Atomism and Radioactivity: A Brief History -- Atoms and Radiation -- Radioactivity -- Production of Radionuclides -- PET and SPECT Scanners -- Chemistry: Basic Principles -- Cell and Molecular Biology -- Radiopharmaceuticals -- Chemistry of Organic Radionuclides (C, N, and O) -- Chemistry of Radiohalogens (F, Br, I, and At) -- Chemistry of Trivalent Metals Radionuclides (Ga, In, Y, Lu) -- Chemistry of Transition Metals (Cu, Zr, Tc, Re) -- Quality Control of Radiopharmaceuticals -- Pharmacokinetics and Modeling -- Molecular Imaging in Oncology -- Molecular Imaging in Neurology and Psychiatry -- Molecular Imaging in Cardiology -- Molecular Imaging of Gene Expression and Cell Trafficking -- Radiation Dosimetry and Protection -- Radiopharmaceuticals for Targeted Therapy -- Targeted Therapy with Beta Emitting Radiopharmaceuticals -- Targeted Therapy with Alpha Emitting Radiopharmaceuticals -- Theranostics: Molecular Imaging and Targeted Therapy -- Radiopharmaceuticals: Drug Development and Regulatory Issues.