This course discusses topics in electron diffraction and imaging: Crystal structure, Symmetry, Reciprocal space, Different type of projections (polar and stereographic), Electron microscope (Properties of waves, Wave nature of electron, de Broglie equation, electron optics, lens and lens defects, Components-source to detector), Fundamentals of diffraction, Computation of intensity of diffraction patterns, Different types of diffraction (Selected area, Kikuchi, Convergent Beam and nano-diffraction), Contrast theory (Kinematical and dynamical theory), Imaging of different types of defects (zero, one, two and three dimensional defects), Phase contrast microscopy, Basics of electron crystallography (combining diffraction and High resolution transmission electron microscopy), Brief Introduction to recent techniques in electron microscopy (Holography, Scanning TEM, Z- contrast microscopy, Orientation Microscopy, etc). (from nptel.ac.in)