Mixer: Shows channel strips for each track in the project, as well as auxiliary, output, and master channel strips. You can view and edit channel strip controls, customize routing options, and add and edit plug-ins in the Mixer.
Editors: Logic Pro features a set of editors, including the Audio Track Editor, Piano Roll Editor, Score Editor, Step Editor, and Audio File Editor, which you use to make precise changes to individual regions and their contents.
List Editors: An area where you can view and edit MIDI events, markers, tempo, and time signature events numerically.
Note Pad: Features text areas where you can create, view, and edit project and track notes.
Loop Browser: Gives you access to the included Apple Loops library so you can search for loops and preview them, then add them to your project.
Browsers: You can view the audio files in your project in the Project Audio Browser and browse your computer and connected storage devices using the All Files Browser.
You can show or hide different areas as part of the main window. Some can also be opened as separate, movable windows. You can also open multiple instances of the main window, and change each one differently.
Choose Window > Open Main Window (or press Command-1).
Download the guides:
Logic Pro User Guide: PDF