Eichner's classic
A Guide to Post-Keynesian Economics (1978)
is still seen as the definitive staging post for those wishing to familiarise themselves with the Post-Keynesian School. This book brings the story up-to-date.
Of all the subgroups within heterodox economics, Post-Keynesianism has provided the most convincing alternative to mainstream theory. The main representatives of the Post-Keynesianism from both sides of the Atlantic are represented here, including Paul Davidson, Geoff Harcourt and Sheila Dow.