There are around 220 books in the 5+ list. Please note, this list likely has some mistakes in it, I definitely recommend buying the book. I'm only 40% of the way through this list and my daughter is seven. This is about where the list gets pretty frustrating as many of these books are huge. For instance, Italian Folktales by Italo Calvino is 799 pages long and it's a pretty small font. I cannot imagine a single child between the age of 5-8 sitting through this. It's a collection of 200 tales and even reading one at bedtime every night you still are looking at over 6 months to finish it and then how do you fit the other books in? There are 219 other books, most of them chapter books, to finish in a 3 year window. Additionally, by the age of five kids definitely have opinions about what they want to read, so you really have to allow them to select some books too instead of just working from this list. This list made my daughter hate reading for awhile and we found we needed to take a break to just read some silly stuff like Captain Underpants and Junie B. Jones and so on.
I would still say that this was a pretty cool experience because we discovered things we wouldn't have discovered otherwise and it gave our reading a direction which I think prevented reading slumps. I am pretty frustrated that the list really cannot be finished in that time window. It could be if I was just reading them as an adult, but, reading aloud makes the reading go much slower.