Ladybird Book

Incredibly, Mrs C found this ladybird in our living room a few minutes ago. I thought I'd give it something appropriate to read, but it didn't seem very interested in "The Ladybird Book of How it Works: The Computer". Also incredibly, this was on my reading list at university nearly 45 years ago when a computer filled a room and could now be replaced by something the size of, well, a ladybird.
(Yes, I do have most of my books from 45 years ago.)