Welcome to the forums, trigatti
I don't have a Pocket eDGe, but on the enTourage eDGe, which should be more or less the same, the icon at the top right of the reader displays a toolbar (or hides it if you press it again). You can read the Pocket eDGe user guide for more info:
http://www.entourageedge.com/forums/...DGe-User-Guide (this is also available under "Help" on the LCD side under applications).