This course outlines the three major steps in seismic processing flows, defines seismic noise and lists the two types of noise that processing tries to suppress. The advantage of common-midpoint multiplicity is explained, ground roll is identified on a seismic section and the kinds of filtering used to remove ground roll are demonstrated. The course describes how array simulation improves the lateral continuity of seismic sections. The mathematical operation of demultiplexing is described, the reasons for noisy traces are identified and the ways to correct them are covered. It explains reasons for seismic amplitude decay and defines the common ways to correct it. The various forms of datum corrections are outlined and why these methods are employed is explained. The course defines the process of deconvolution and what the process improves. The advantages of the multifold acquisition technique are outlined. How normal moveout increases reflection time is explained and the normal moveout correction process is described. CMP stacking, stacking velocity and the process of migration are defined. How reflections are moved with migration is described. It explains the two main goals of seismic post-processes and the benefits of the F-X deconvolution filter. The historical, primary trace display modes and reasons for choosing plotting scales are outlined.