She hopes the initiative would encourage families to come to the library and sign up children.
Napier Libraries don't charge overdue fees on children's items, a Napier City Council spokesperson said.
Both libraries have a number of programmes running for the school holidays and in July.
Hastings District Libraries are running a range of activities until July 19 to celebrate Matariki including storytelling and readings to art and technology workshops.
From July 10 to 25 the school holiday programme includes a range of activities such as whānau films, mini golf at the library and scavenger hunts.
The Turn Up The Heat adult reading challenge is also running until August 15.
At Napier and Taradale libraries from July 10 to 25 there will be activities such as 3D printing workshops, story times and scavenger hunts
The winter reading programme for 4-18-year-olds is running from now until August 29 and challenges participants to read between five and 10 books in this period.
Taradale Library community engagement lead Mary-Anne Pay said parents have found the programmes are great to keep up children's reading over the holidays.
Full programme details are available on the libraries' websites.