If you can find a copy, check David Vestal's Craft of Photography (1978), and the followup, The Art of Black and White Enlarging (1984). Both from a time when enlarging and printing were BIG things. Hard to find (?) but very much worth it. Not just mashups of older books reformatted into modern trendy colourful picture laden tomes.
Happily, they've become easier to find recently - search for author David Vestal on AbeBooks. I just did and saw multiple copies of both available inexpensively.