Ditto on learning Eagle..
although isnt it Cadsoft? and not: Cadsolf Eagle PCB
anyways.. I'll mirror that at first it was VERY awkward to get used to..
for me these tips helped me navigate the GUI and increase workflow..
1.) Eagle was designed to be used with a 3 button mouse (left, right and center/mouse wheel (click))
2.) Eagle works opposite many of us are used to where you normally select/highlight an item/object.. then go APPLY some formatting or change to it.. Eagle is opposite.. you select the change/formatting you want to apply.. THEN you click on the object/part/component..etc..
learning how & when to use the center mouse wheel has been invaluable to me.. ie: (really helps when routing and need to drop a via or quickly move a part to the bottom layer..etc)