The 25th anniversary edition of a beloved classic Over a million young readers have enjoyed the wheels that go round, doors that open and shut, and people who go bumpety-bump.
Today it remains as fresh and engaging as when it was first published twenty five years ago.
To celebrate the anniversary, Paul O.
Zelinsky has created an all-new cover featuring twenty five, hidden 25s.
Some are the number 25 and others are 25 of something in the picture.
Can you find them all?.