Wednesday Puzzle: The Bookworm

If you've read many puzzle books, you've probably come across this one in some form. Everyone takes a stab at their own version sooner or later, so here's mine:

A 26-volume encyclopedia set is placed, in order, on a single shelf. Each volume is 2" thick. Each cover is 1/5" thick.

If a book worm starts on the first page of the first volume, how far will he have to travel to reach the last page of the last volume.