[ANN] New MOOC "Advanced Object-Oriented Designâ  Get ready for a new #MOOC "Advanced Object-Oriented Design"! Understand the key mechanisms and the essence of OOD with the following topics: Understanding messages Test-Driven Design Hooks: support for evolution Objects: state and behavior Elementary design patterns Double dispatch Object creation Sharing objects Inversion of control About types Trailer: https://www.youtube.com/watch?v=9HMYS-mzDKQ&t=1s You will find:  Videos to explain main concepts & tools Quizzes and exercises that we've packaged together in companion exercises book Lectures with command transcripts & explanations  Course starts on June 17  Enroll for free: https://urlr.me/M6hSr <https://pharo.us11.list-manage.com/track/click?u=6f667565c2569234585a7be77&i...>  Pace: Self-Paced, 1-year access  English