Book ideas for a 5 year old and 3 year old.

[Helpexcel]

A relative of mine wants to buy books instead of Easter eggs for my dc
middle child (ds age 5) is doing really well with reading but I have no idea what to suggest for him or his 3 year old sister.
We have lots of books and my oldest dc (dd age 8) has always got her head in a book so we have lots left over from when she was this age.

any ideas would be appreciated.

For your DS
Travel compendium edition of Where's Wally? (smaller for small hands)
Horton hears a hoo - Dr Seuss

For your DD
Just like you
Things you'll see on Mulberry St. - Dr Seuss

Or audio cd of Paddington stories read by Stephen Fry

Thanks, we haven't actually got any Dr Seuss books, so will add some to the collection.