Professor Dickson Despommier, co-host of TWiV and TWiP, and well known for his ideas about vertical farming, taught parasitology to medical, dental, and nursing students at Columbia University’s College of Physicians & Surgeons for 38 years. Below are videocasts of the six lectures from the final version of his course, Parasitic Diseases, which he taught in the fall of 2009. These are excellent companions to the first 27 episodes of TWiP, which explore the basics of eukaryotic parasites including protozoa, nematodes, cestodes, and trematodes.