A manufacturing defect in children's books being distributed as part of the Bookstart scheme in Sheffield has led libraries to recall some titles.
A fault on the fabric tag element of the books could result in the tag becoming detached and present a choking hazard for small children and babies.
The affected 'Amazing Baby' titles are: 'Go Baby!', 'Twinkle, twinkle' and 'Little, big!'.
The books can be returned and exchanged at any public library in the city.
A council spokesman said only a small quantity of the books may have the defect but urged all parents to return their copies of the affected titles.