Earlier quoted context omitted.
No such book actually exists. There's a french book that covers basic/common procedures and a reader's digest book but those are about it; and they definitely are not beginner oriented.
That's just not true. Every generation has its own version of this. In the 60s-70s, it was The Joy of Cooking. In the 90s it was How To Cook Everything. Based on the replies there are some candidates for today.
I agree with your basic point though. And there are tons of cookbooks today that do spend pages on relevant techniques--though certainly some are celebrity chef memoirs interspersed with recipes and high-quality photoss.