ZBrush HotKeys List for beginners

okay...for 3D artist zbrush is one of the most important software because it's more easier to do the texturing in this software, zbrush is the first program to replace the concept of digital modeling with digital sculpting, creating forms in Zbrush feels more likle sculpting virtual clay.
Zbrush is an easy program to use once you know how, this software can be a little difficult at first but with a litte effort,patience , and practice you'll quickly learn all you need to know to start creating amazing digital sculptures.
to learn how to sculpt like a pro, first you need to speed up your work in the program quite a bit, there is a lot of ways to speed up your work, by understanding the interface for example and know how to use the hotkeys
here is a list of ZBrush hotkeys you'll be using a lot, take your time to use it during practice.

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• Undo: Ctrl+z
• Redo: Shift+Ctrl+z

Interface Actions and Help
These hotkeys relate to the built-in help messages and interface customization.
• Show item description (when Popup Info is switched on): Ctrl+cursor over item
• Move item to custom interface position: Ctrl+drag (when Enable Customize is
switched on)
• Remove item from custom interface position: Ctrl+drag to canvas (when Enable
Customize is on)
• Actual size: 0 [zero]
• Anti-aliased half size: Ctrl+0
• Zoom in: + [plus sign]
• Zoom out: - [minus sign]

Transforming 3D Tools and Strokes
These hotkeys are used when transforming 3D tools in Edit Mode and the gyro manipulator
in Draw mode.
• Move: w
• Scale: e
• Rotate: r
• Edit: t
• Free rotate: Click and drag background
• Move: Alt+click and drag background
• Constrain to 90-degree rotation: Click+drag, press Shift
• Scale: Alt+click, release Alt, drag background
• Rotate around Z axis: Shift, click, release Shift, drag

Working with Document Layers
These hotkeys are used when working with document layers.
• Clear layer: Ctrl+n
• Fill layer: Ctrl+f
• On layer thumbnail, toggle all layers on/off: Shift+click
• Select layer on which clicked pixol resides: ~+click canvas (U.S.) @+click canvas (U.K.)
• Move layer contents up/down/sideways (X and Y): ~+drag (U.S.) @+drag (U.K.)
• Move layer contents forward/backward (Z): ~+Alt+drag (U.S.) @+Alt+drag (U.K.)

Working with 3D Tools
These hotkeys are used when working with 3D tools in Edit mode.
• Save tool: Shift+Ctrl+t
• Divide: Ctrl+d
• Lower res: Shift+d
• Higher res: d
• Toggle ZAdd and ZSub: Alt (hold down)
• Edge loop: Ctrl+e (partially hidden mesh)
• Show mesh portion: Shift+Ctrl+click and drag
• Hide mesh portion: Shift+Ctrl+click, release Shift, drag
• Show entire mesh: Shift+Ctrl+click background
• Show only selected polygroup (on fully visible mesh): Shift+Ctrl+click
• Hide selected polygroup (on fully visible mesh): Shift+Ctrl+click
• Reverse visibility: Shift+Ctrl+click and drag background
• Center mesh in canvas (when in Edit mode): f
• Draw polyframe: Shift+f
• Point selection mode: Shift+Ctrl+p
• Set pivot point: Ctrl+ p
• Clear pivot point: Shift+p
• Snapshot: Shift+s

Masking and Stencils
These hotkeys are used when working with masks and stencils.
• View mask: Ctrl+h
• Invert mask: Ctrl+i
• Clear mask: Shift+Ctrl+a
• Mask all: Ctrl+a
• Paint mask on tool (alphas/strokes can be used): Ctrl (hold down)
• Delete or paint reverse mask: Ctrl+Alt (hold down)
• Reverse mask: Ctrl+click background
• Clear Mask: Ctrl+click+drag background
• Constant intensity mask: Ctrl+click, release Ctrl, drag (starting off mesh)
• Alpha intensity mask: Ctrl+click and drag (starting off mesh, Lasso off)
• Blur mask: Ctrl+click on mesh
• Stencil on: Alt+h
• Hide/show stencil: Ctrl+h
• Coin controller: spacebar

Rendering
These hotkeys are used when rendering.
• Render all: Shift+Ctrl+r
• Cursor selective render: Ctrl+r

Strokes
These hotkeys are used when working with strokes.
• LazyMouse: l
• Replay last stroke: Ctrl+1
• CropAndFill: Shift+Ctrl+f
• Grab texture from document: Shift+Ctrl+g

Working with ZSpheres
These hotkeys are used when working with ZSpheres.
• Preview adaptive skin: a
• Activate symmetry: x
• Draw pointer: q

Source :Introducing Zbrush by Eric Keller