1.Rings and modules. 2.Additive functors. 3.Satellites. 4.Homology. 5.Derived functors. 6.Derived functors of and Hom. 7.Integral domains. 8.Augmented rings. 9.Associative algebras. 10.Supplemented algebras. 11.Products. 12.Finite groups. 13.Lie algebras. 14.Extensions. 15.Spectral sequences. 16.Applications of spectral sequences. 17.Hyperhomology.