Welcome back! And congrats on the new arrival.
I've seen "How to Boil Water" and it's very, very basic. It's aimed at college students who have never been inside a kitchen before, and give step-by-step instructions on how to, say, make ramen.
I really like the Fannie Farmer cookbooks. There's a general cookbook, as well as one specifically for baking. Both have clear instructions and explanations. They're by Marion Cunningham, and imaginatively titled the Fannie Farmer Cookbook and the Fannie Farmer Baking Book, respectively.
Your library might have copies of some of these. It's worth looking.