Image of SofTutor is the fastest way to Learn!
From SofTutor for AutoCAD 2D - AutoCAD DesignCenter
Topics and keywords covered in this video are:

AutoCAD DesignCenter Browser New File Drawing Drag Drop View
Drag & Drop Layers And Blocks Into A Drawing New DesignCenter Browser Properties
Overview Of Design Center Tools New Browser Icon File Find History
Viewing The Structure Of A Drawing New Design Center Browser Properties