iTunes not dispaying window on iMac

I can play tracks using iTunes but cannot see the window that shows all the songs and folders. When I click on the iTunes icon in the dock it bounces but will not display. This happened after I tried to burn a cd. Any suggestions?

If you right click the icon on the tock, has 'iTunes' at the top of the menu got a tick next to it?

Thanks for replying and yes there is a check mark there.

Try closing iTunes (either cmd + q or Force Quit) then reopen, does the main window display?

Also, it may be in hide mode. Click the iTunes logo on the dock and do cmd + h.