Standens Barn Primary School staff and pupils were thrilled and surprised by a donation of £1,000 from local company Billing Finance.
The family run business, managed by Oliver Mackaness decided to make the contribution as part of World Book day.
Billing Finance already provide volunteers who come into the school and listen to children read each week.
A school spokesman said: “We are extremely grateful for this four-year link with Billing Finance and long may it continue.
“To be given the donation was a great surprise and along with the children’s ideas for new books, we are looking forward to extending the range of library books within the school.”