Grow Cook Eat by Willi Galloway had a lot of useful tidbits I hadn’t found elsewhere, such as soil temperatures for germinating (the Johnny’s seed catalog seems to have air temperature? or so I assume, as it’s not specified) and some sections on mustard greens and bok choy. I have added it to my spreadsheet of useful books.
For those interested in cooking (aka not me anymore), it also had a lot of recipes and talked about eating parts of plants that aren’t usually discussed, like radish seed pods and various flowers of vegetables.