My Favorite Shortcuts Lightroom
G Library Grid view
N Library Survey view
D Develop Module
Tab hides and reveals left and right panels
Shift-Tab hides and reveals both the panels and filmstrip
Ctl/Cmd Z: Undo last step (hit multiple times to go back multiple steps) In photoshop you would use this for the first step, and then use Cmd/Option Z to go back further steps.
Ctl/Cmd +/- zooms in and out (Library and Develop)
Space bar hand tool (Library and Develop)
\ grid view: hides and reveals the Library filter bar at the top.
P, X, U Flags: Pick, Reject, Unflag
0-5 assign 0 to 5 stars to your image.
6-9 assign colors to your image.
T hides/reveals toolbar
F Cycle screen modes (Full screen)
L Lights Out
In the Develop Module:
R crop tool
K adjustment brush
O toggle on/off the adjustment brush overlay (shows where you have painted)
Q spot removal tool
\ toggle Before/After
[, ] reduce, increase brush size (spot removal tool, red eye, and adjustment brush)
Ctl/Cmd E Edit in Photoshop
My Favorite Photoshop Shortcuts
**All photoshop / Lightroom shortcuts that are the same in both programs are highlighted in Lightroom Shortcut sheet
J to get to the healing tools (also available in the tool palette)
Cmd J to make a new layer (can also drag onto the new layer icon on bottom of layers panel)
Cmd Option I to get to Image size. Also accessible under Image > Image Size
Cmd A Select All (marching ants around image) (Make sure you are on the layer with the image, and not an adjustment layer)
Cmd C Copy All that is selected
Cmd V Paste All
Cmd 0 (zero) to fit image to screen