Dr. Minkowski was appointed lecturer in the Electrical and Computer Engineering Department of The Johns Hopkins University in 1961. After a distinguished career during which he was well regarded by students and colleagues, he retires in 1987 as Professor Emeritus. In Series 2: Course Material, are Dr. Minkowski's files from classes he taught at the University. The largest amount of material relates to the following classes- Quantum Electronics; Fields, Matter and Waves; Lasers & Optical Information Processing; Electricity and Magnetism.

In the files are examples of assignments, examinations, lecture notes, calculations, exercises, and some reference material. Notes not easily identified for a specific class have been assigned a heading of "lecture notes" and some chronological order has been established. Some Professional correspondence is contained along with students' addresses and a very small amount of secondary material related to the Department of Electrical Engineering: equipment orders, departmental memos, and university publications. Also in Series 2 are objects (mostly encased in test tubes and jars) from Dr. Minkowski's laboratory work including slides, tapers, and crystals.

Box 7 of Series 2 is closed to researchers because of personal nature of the files. Several files contain recommendations written by Dr. Minkowski. In Box 7 are also thesis proposals, course evaluations , and term papers.