It's a good list, and I'm especially delighted to see Pinnochio on there. The book is so much better than the animation. I want to post ten on the end, so I will.
The Ruby In The Smoke - Philip Pullman
The man is master storyteller, but his famous series (His Dark Materials) can present some problems. This Dickensian adventure has a broader appeal.
Swords and Deviltry - Fritz Leiber
Not a children's book, but children should read it. This is the beginning of one of the greatest fantasy series ever.
Hydra - Robert Swindells
Simply, he was my favourite childhood author. Hydra is the page-turner in his canon.
Black Beauty - Anna Sewell
There's not a lot to say, it's just a really good story.
The Hitchhiker's Guide to the Galaxy - Douglas Adams
You really shouldn't need any explanation.
Of Mice and Men - John Steinbeck
This is an absolutely brilliant book. I read it when my older brother was doing it for his GCSE coursework. Which means I was 11 years old at the time.
Between Planets - Robert Heinlein
I like this book more than most of his other works. His personal views don't get in the way in this story, so you focus more on his incredible talent.
The Graveyard Book - Neil Gaiman
Another fabulously talented author, another highly readable book.
Jonathon Strange and MrNorrell - Susanna Clarke
This is another highly readable, contemporary novel.
Danny, The Champion of The World - Roald Dahl
This list wouldn't be complete without him.
