As stated earlier in this thread we are leaving for our third trip to Alaska in April. I still have the 2010 version of the Milepost with many notes made on several pages. Not planning to buy a new one as not much changes from year to year. If you don't own one then I would recommend buying the most recent version. The new ones come out in March/April time frame.
Haven't had the need for any other book, magazine or reference material.
I use the Milepost for the maps, turnouts, and distances. The ads are worthless along with fuel stops and places to stay. Many of those have closed up even back in 2010 when I had the latest version. And many more had closed up in 2012 when were back for the second time.
Regarding the Tour Saver book, here is where you can order one.
Dr4Film ----- Richard