My 67 FHC came with a Haynes manual. Very informative by seeing what pages were grease smudged or falling out ( electrical) with notes and wiring diagrams colored in.
I also find the XK’s Unlimited catalog very helpful for part diagrams etc. If you order from them see if they will send you a paper copy for free with your order. It is by far the best of the supplier catalogs I have seen. You can also view it on-line but I like my paper copy much better
David
68 E-type FHC
Great suggestion. Have to follow up on that.
Speaking of books, and apologies if this has already been posted, but the guy who started/created the Haynes manuals died.