This was the EXACT same book that I used to read to my son in 1980! I was so pleased to see it still in print. It was first published in 1978, I believe, but is still current in content. My "then 2-1/2 year-old son" loved it for years, so I purchased this to give to HIS son, who is 2-1/2 now. The content is appropriate for many years; it is not meant for 2-1/2 year olds, unless they are "super-geared" into construction equipment!