As in title there is only sixth chapter I ended also earlier ones, but this one was Huge! I can't understand why author make his one big chapter where I can see at leas 2-3 relatively autonomous parts, at least properties and Visual Library can make a separate chapter. I am complaining because I really like small chapters which I can read in one evening or even morning ;) Chapter 4: Lookup Lookups are certainly a heart of modules system in NetBeans. Using scopes Modules can search for public classes(using this developers can add functionalities to existing modules) and communicate with other modules without knowing exactly to which module they are talking Chapter 5: Actions Pretty straight-forward, creating Actions(as global and reusable for toolbar, menu). More advanced is creating actions that are enabled with custom conditions, eg. Task object available in lookup to edit it :) Chapter 6: Nodes and Explorer Views Longest chapter (65 pages), about... everything from Expl