» Fri Jun 01, 2012 8:14 am
If you're on the PC you can use the console command setstage . See http://www.uesp.net/wiki/Skyrim:Console for more details.
However I'm not sure if "restarting" the quest will solve your problem, since you already are at the start of your quest. Have you tried dropping the book and picking it up again? Or maybe following directions to find the book, then go to the area where you found it and drop and pick it up again? Hopefully that will do something.