Stefan Neubert, a PhD student with the group, wrote a new book Grundkurs Theoretische Informatik in which he introduces the basic concepts and methods of theoretical computer science. It is intended for students and interested non-professionals and is the ideal accompanying book for a second-year Bachelor course on the matter. The book is the result of Stefan's experience as a researcher and teacher at the HPI. It is already his second book on CS after Fit fürs Studium – Informatik in 2017 together with Arne Boockmeyer and Philipp Fischbeck.