Hi Hitch
Firstly IANAT (not a typographer), IAAD (I am a dabbler).
I can't say about specific books, but
https://www.typewolf.com/resources
has links to lots of good stuff, including free and paid books.
http://practicaltypography.com/ ====BUTTERICK'S PRACTICAL TYPOGRAPHY [online ebook/web-book] might be useful.
I have only dipped my toes in this one, but another good source for you might be
http://ilovetypography.com/
It is LOADED with tutorials and information.
While I'm here, let me recommend a simple font editor from
http://www.cr8software.net/software.html
TypeLight is free, and slightly feature-limited (no easy way to re-size glyphs, no vector import).
The Pro version Type 3, is currently $55, but the demo version is free, not time-limited, and is only feature-limited in that it only saves the first 50 glyphs ---- but you can cheat, like I do --- use the free demo to import SVG outlines to create new glyphs, or use it to re-size or skew glyphs, save an abbreviated font with those changes, then borrow those new glyphs into a font using the freeware TypeLight to create a full font with as many glyphs as you like.
The pdf help files for those two softwares are a fairly good introduction to font creation.