I remember reading this as a kid & thinking "I hope I never get diabetes & have to inject insulin!" Well, I was diagnosed a few years ago but thankfully, no needles! Much of the health info in this book is dated so I love that the newer edition I own has an epilogue that explains how diabetes management changed. Because of that (& nostalgia) I give it 3.5 ⭐️ The cover on the bottom right is from the edition I read in the 80s. 90s edition top right