There are many sets of Bob Books; did you get all of them or just Set 1? Set 1 begins with (I think) Mat and ends with The Vet, which is book 12. Set 2 is very slightly more advanced than Set 1 and has 10 or 12 books. Each set gets a bit harder to read. Set 5 uses silent e. Most of the stories are very good; some are kind of lame (in particular, The King in set 5 doesn't seem to make much sense).
The publishers came out with some pre-reading books recently, but these books don't use the same stepwise approach that the five original sets use.
Val
