Jeffery Sanders, another past contributor, gives us two more juicy tips. Block Library Manager (Tip #1979) is a handy tool that helps you organize directories of blocks.The several files for this tip need to be located in Auto-CAD s current search path. The program attempts to load them while evaluating, so it s not good enough to simply load them in the VLIDE unless you also modify the code.The Library command starts the ball rolling. To create a new library, start with a blank drawing, then load and run the Library command. From your DWG files, pick the blocks that you want included in the library, and the system creates corresponding slide files to preview the library elements. Once the libraries are completed, you can use the Library command to insert blocks into drawings based on your own library naming and slide previews. This is a great example of Visual LISP power, and it contains some handy utilities for programmers.