From BlenderWiki

Transformations

There are many things you can do with the selected object within your virtual world. You can twist it, make it bigger or smaller, spin it around, change its shape, and so on. This section tells you how to do these things to your objects.

Here is a list of available transformations:

• Advanced
  • Mirror
  • Push Pull
  • Shear
  • To Sphere
  • Warp
• Basics
  • Gestures
  • Grab
  • Rotate
  • Scale

You can apply transformations using:

• shortcuts

Tap a key to perform an action

• context-sensitive menus

With an object selected in a 3D view, in Object mode, the menu bar shows the View, Select and Object options. Click the Object one to manipulate the object. The menu that pops up has the option Transform. Hovering over Transform pops up a sub-menu, showing you options (and hot keys on the right) to manipulate the object.