It is my pleasure to welcome Professor Michael Zdilla from Temple University as our guest for the third blog of the CSD Educators series. In his journey through crystallography teaching, Mike has created the Database for Educational Crystallographic Online Resources (DECOR), which we now host here at the CCDC. In its creator’s words, “DECOR is the world’s first online repository of shared teaching materials for crystallographic education. The site has an array of downloadable visual aids, animations, homework problems, and links to online courses and software downloads. DECOR is a resource for anyone in search of teaching tools for development of a new course for crystallography, augmentation of existing courses, or the pursuit of an informal education in crystallography and diffraction.”