"LDraw" is the name of the parts library, and (more loosely) the system of tools that uses the parts library. To create models, you'll probably want to use MLCad or LDCad, which should show up in a search. (Note that while MLCad has long been the standard LDraw-based CAD program for Windows, it is no longer under development, and hasn't been for quite some time.) To view models you have created, or others have created (including the sample models in the AIOI), you'll probably want to use LDView, which is purely a viewer.
Once you have created a model with MLCad or LDCad, you'll probably want to use LPub to generate the instructions. (Note that you will almost certainly want to follow tutorials for using LPub.) Make sure to include steps when creating the model, or you won't be able to generate instructions.
Once you have created a model with MLCad or LDCad, you'll probably want to use LPub to generate the instructions. (Note that you will almost certainly want to follow tutorials for using LPub.) Make sure to include steps when creating the model, or you won't be able to generate instructions.