Istvan Hargittai is a University Professor at the Institute of General and Analytical Chemistry, Budapest Technical University.Magdolna Hargittai is Research Professor at the Budapest University of Technology and Economics. She is a Member of the Hungarian Academy of Sciences and of the Academia Europaea.

• Part A: Fundamentals and Experimental Techniques Chapter 1: Introduction to Gas-Phase Electron DiffractionHistorical PerspectiveBasic Principles of Electron DiffractionMolecular Scattering and Diffraction Pattern FormationInformation Content in a Diffraction PatternChapter 2: Instrumentation and Experimental ProceduresElectron Gun DesignSample Introduction SystemsDiffraction Pattern Recording (Photographic and Digital Methods)Calibration and Data ReductionChapter 3: Molecular Vibrations and Their Effect on Diffraction PatternsNormal Coordinate AnalysisVibrational Averaging and Root-Mean-Square AmplitudesThe Effect of Large Amplitude MotionsChapter 4: Data Analysis and Structural RefinementLeast-Squares Refinement ProceduresModel Building and ConstraintsError Analysis and Reliability FactorsChapter 5: Advanced Techniques in Gas-Phase Electron DiffractionTime-Resolved Electron DiffractionElectron Diffraction with Molecular BeamsCombined Electron Diffraction and Microwave Spectroscopy