I got the Computers and Coding flap book for my 6 year old this Christmas, and got second-hand copies of many of the original books for myself. It's striking how closely the new publication's content matches that of the older books, despite the changes in the industry.
There are several other books from the Usborne 80's catalogue not shown on that page but worth having: Understanding the Micro, Usborne Guide to Computers, How to Make Computer Controlled Robots & How to Make Computer Model Controllers
I'm pretty sure it was How to Make Computer Controlled Robots that I found in my school library as a kid and spent hours staring at, desperately wishing I had access to anything resembling a computer...
There are several other books from the Usborne 80's catalogue not shown on that page but worth having: Understanding the Micro, Usborne Guide to Computers, How to Make Computer Controlled Robots & How to Make Computer Model Controllers