Hilaire wrote

Read the Pharo by example Morphic chapter, it is written for beginner

The chapter is a good introduction. Also read the LaserGame Tutorial. The problems come after that. What is a good way of distributing responsibilities? How do I find which Morph already does (nearly) what I need. There are 347 Morph subClasses in my currently open image. When I want to resize my Morph, should I be looking at one of the AbstractResizerMorph subClasses, at Halo or perhaps at Handle? Or should I do it like PolygonMorph? In the LaserGame, the whole game is one Morph (embedded in a window with a few buttons). I find it is possible to create very elegant solutions using Morphic, and finding the right approach is difficult. Stephan