Part A -- Basics: Section I: Magnetic Resonance Imaging: Introduction to MRI; MRI Instrumentation; Selective Applications of MRI for Brain Imaging; Ultra-High Field and Emerging Applications; Section II: Positron Emission Tomography: Introduction to PET; Positron Emission Tomography Instrumentation; PET Quantification; Kinetic Modeling and Extraction of Metabolic Parameters; Part B -- Hybrid MR-PET Imaging: Technical Overview: Section I: Hardware: Introduction and Historical Overview; MR-PET Instrumentation; Section II: Special Aspects of Data Corrections in MR-PET: MR-based Corrections for Quantitative PET Image; Motion Correction in Brain MR-PET; Section III: Special Considerations in MR-PET: MR-PET Measurement; Parametric Imaging; Technical and Methodological Aspects of Whole-body MR-PET; Part C -- Human MR-PET Applications: Brain; Clinical Applications of Whole-body MR-PET; Part D -- Preclinical Applications: Preclinical Hybrid MR-PET Scanner Hardware; Preclinical Applications of MR-PET; Part E -- Tracers: Radiotracers for PET and MR-PET Imaging