Exhibitors communicate with visitors during the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

A visitor checks the Chinese exhibition area during the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

Visitors attend the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

Visitors watch the illustrations during the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

A visitor walks past posters during the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

Visitors take photos during the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

Visitors attend the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

A visitor walks past the official poster of the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

Visitors visit the exhibition area of the Guest of Honour Norway during the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

Exhibitors communicate with visitors during the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

An exhibitor introduces a book to a visitor during the 63rd Bologna Children's Book Fair in Bologna, Italy, April 13, 2026. The 63rd Bologna Children's Book Fair opened on Monday in the Italian city of Bologna. (Xinhua/Wang Kaiyan)

(260413) -- MADRID, April 13, 2026 (Xinhua) -- A visitor talks to a cheese exhibitor during the Salon Gourmets in Madrid, Spain, on April 13, 2026. The 39th Salon Gourmets will run in Madrid from April 13 to 16. (Photo by Gustavo Valiente/Xinhua)