A lot has happened in the field of condensed matter physics since the original edition of "Green's functions for Solid State Physicists" was published in 1974. Nevertheless, the book has helped introduce several generations of condensed matter physics graduate students to the very powerful ideas of quantum many body theory and some of their ap-plications, particularly those in the physics of itinerant magnetism and superconductivity that have nowadays come to be called "the correlated electron p