Integral Equations.- General Results on Linear Integral Equations.- One-Dimensional Singular Integral Equations.- Two-Dimensional Singular Integral Equations.- Approximate Solution of Integral Equations.- Problems of the Theory of Elasticity and Cracks Mechanics.- The Integral Equations of Classical Two-Dimensional Problems.- Potential Theory for Basic Three-Dimensional Problems.- The Contact Problems of the Theory of Elasticity.- Problems of the Theory of Cracks.