I grew up with the World Book set as well. Seemed like there were more books/pages (or maybe thicker pages/smaller print). We also had a set of Funk and Wagnall

I grew up with the World Book set as well. Seemed like there were more books/pages (or maybe thicker pages/smaller print). We also had a set of Funk and Wagnalls as well as a Disney set of the future world. They were a constant passtime, but even as a child certain topics ended far too briefly. Today we have Wikipedia to follow up.