If you are new to Mac you may not yet be taking full advantage of keyboard shortcuts. You can find almost all shortcuts by simply looking at the command in the menu bar. There are symbols that you will find in the menu bar that map to the Shift, Control, Option and Command keys on the Mac keyboard. You can also find shortcuts in System Preferences, and even assign your own to menu commands that have no shortcut. One difficulty that Windows users often have is that the Control key is used as the primary modifier key in Windows, while the Command key is the equivalent on the Mac.