Prof. Drelich visited Gdansk University of Technology in Poland this summer and instructed the summer graduate course entitled “Contact Angles: Measurements, Interpretation and Modern Applications”. Fourteen PhD students from chemistry, materials, and electrical engineering programs attended this five-day course. In this course, Prof. Drelich reviewed the physics behind wetting phenomena on solid surfaces and discussed new developments and modern applications of contact angle and wetting phenomena concepts – with emphasize on superhydrophobic and superhydrophilic surfaces and coatings.