Indeed the Homestead vendor has it, and it can also be obtained after completing the teleport puzzle in the caves near Sacred Stone. The one below the cliff you first teleport onto from Loic's basement.
I assume it's only available in the world and not sold. At best, keep an eye out for a scroll of it, then write into a blank book.
You can't make books out non-magic skills.
I'm having a similar problem with the Barrage skill, I bought it off the Fletcher, lost it after respec without realizing that it would never appear in shops again. Really need help with that, doesn't it appear anywhere in the world?http://www.larian.com/forums/ubbthreads.php?ubb=showflat&Number=511038&#Post511038