This book is a find, and a delight. Stories are varied and absorbing, and having the English translation there on the page - set out exactly in the same format as the French is a real boon. That in itself is a real stimulus to keep reading on.
Though the French is at quite a high level, it doesn't seem that intimidating, as you flick backwards and forwards between French and English'. Gradually, and to some extent subconsciously, you are absorbing certain fundamental constructions - and general grammar rules as you go.
The only alternative to these books I have seen are for young children, and I've done my time reading 'Spot the Dog' and the like!