Last summer's reading challenge was most popular yet with the highest participation levels - beating the previous year's participation by nearly 7%.
2019 was the twentieth annual Summer Reading Challenge and saw an increase in people using the city's libraries. 42,371 children's books were issued between 8 July and 15 September 2019.
This year's Silly Squad themed challenge will kick off on Saturday 11 July. Children from across the city will be encouraged to get involved and read at least 6 books over the summer holidays in order to attend the winner's event at Southsea Castle on 13 September.
Cllr Pitt, Cabinet Member for Culture and City Development at Portsmouth City Council said: "The Summer Reading Challenge continues to be a big success in the city across all our libraries.
"It's important that young people are encouraged to read for enjoyment and the reading challenge with its fun themes and competitive element really appeals to children."