Select object, Start edit mode with TAB

1	vertex mode
2	edge mode
3	surface mode

ALT-Z	toggle X-Ray Mode
SHIFT-Z	toggle Wireframe mode
	You can select these modes individually or together

LEFT CLICK	select clicked item
SHIFT-LEFT CLICK	add clicked item to selection
ALT-LEFT CLICK next item	Select Edge Loop
CTRL-ALT-LEFT CLICK next item	Select Edge Ring

CTRL-B	Bevel	Bevel Edges You can use the scroll wheel to add segments
SHIFT-CTRL-B	Bevel Vertices	Bevel Vertices You can use the scroll wheel to add segments
CTRL-R	loop cut tool right-click to center the cut scroll wheel to add or delete segments
E	extrude	extrude selected face
ALT-E	extrude individual	extrude selected faces along normals
K	knife tool	left-click to select start vertex right-click to select end vertex hit ENTER to finish the cut(s)
I	Inset	creates a new face in selected face, smaller by how much you move the mouse select a face (near edge) and move mouse to push in
GG	Edge Slide	Slides one or more edges across adjacent faces
F	Fill	Fill a loop with a face

End edit mode with TAB