World of reading books for a 5 year old good reader

[mamabluestar]

Hi, I was hoping that someone may be able to give me some advice on the World of Reading books. I was looking to buy some similar to this

The Amazing Spider-Man: The Story of Spider-Man (World of Reading: Level 2) www.amazon.co.uk/dp/1423154096/ref=cm_sw_r_cp_apa_llfeybGKPJF6T?tag=mumsnet&ascsubtag=mnforum-21

For my year 1, 5 year old son who is enjoying reading at school- he has just started on the yellow band.

My question is about which level, on the World of Reading books, I should start him on? I was hoping to buy them for him for Christmas.

Thank you

[mamabluestar]

I should also add, any other suggestions of books that would encourage him to read to himself would be greatly appreciated.