The summer reading challenge, organised by The Reading Agency charity, is aimed at children aged up to 11 years and is running in all North Yorkshire libraries.
The free summer reading challenge started on 13 July and runs until Saturday 7 September.
This year's theme is Space Chase, an out-of-this-world adventure inspired by the 50th anniversary of the first moon landing.
The challenge is to read six library books over the summer. As they read (or are read to by parents and carers) they will team up with futuristic family the Rockets for an exciting space mission. Books are vanishing off library shelves and the Rocket family has been tasked with getting them back. Library staff and volunteers need the help of local children to complete the mission.
Participating children can read whatever they like – fiction, factual books, joke books, picture books, audio books or e-books – as long as these are borrowed from the library.
During their reading journey children will collect stickers, bookmarks, a space-themed snakes and ladders game and an alien window clinger. Certificates and medals are awarded to children who complete the challenge.
Many events and activities will be staged around the county to encourage children to visit libraries regularly during the summer holidays.
Last summer, around 10,000 children joined the summer reading challenge in North Yorkshire libraries. You can find out about joining the library here