+1 Melvyn Hiscock book. There is surprisingly little else out there (I looked!!), and what there is tends to be short on photos or detailed descriptions of how to do things. It's an excellent reference, but I still find Youtube videos a better resource, nothing beats the visual of a film showing a specific technique, and Youtube will have 10 videos for every conceivable step in the process. Just reading @brucejohnson threads (all of them!) is an education in itself. He hasn't posted many actual instructional videos, but lot of photos of ingenious jigs and fixtures. The one takeaway from all of it is the importance of accurate full-size drawings and templates. There are people out there who can "wing it" on a half thought-through design, I'm not one of them. Templates are cheap, figured hardwood or other Luthiery grade woods are EXPENSIVE. Make your mistakes on MDF or even plywood. On my first build I laminated two 3/4" pieces of scrap plywood into to a 1-1/2" thick blank and made a prototype body, which gave me an immediate read on how it would feel, balance, etc., well worth the effort. You might want to strongly consider buying a finished neck for your first build, building a body is plenty difficult, but don't let me discourage you if you have the tools and ambition. Good luck!
Edit:
https://www.amazon.com/Make-Your-Own-Electric-Guitar/dp/0953104907/ref=sr_1_1?ie=UTF8&qid=1537983151&sr=8-1&keywords=melvyn+hiscock&dpID=51fAJPUa1L&preST=_SX258_BO1,204,203,200_QL70_&dpSrc=srch
Yikes! Must be out of print, only used ones listed for $41!
I looked at my bookshelf when I read this thread this morning and that is the only electric oriented book I have. I have 3 others that are focused on acoustics.
