'Needs Must' - Kris Needs: A very early flag-waver for Motorhead via his 'Zig-Zag' punk magazine outpourings, Kris Needs book, 'Needs Must,' is an excellent rock 'n' roll read.
It includes a fairly chubby chapter dedicated to times spent with Motorhead between 1977 and 1985, and is well worth adding to your list of Motorhead related books.