chapter book
US /ˈtʃæp.tər bʊk/
UK /ˈtʃæp.tər bʊk/

1.
libro a capitoli
a book for children that has chapters but is not as long or complex as a novel for adults
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My daughter just started reading her first chapter book.
Mia figlia ha appena iniziato a leggere il suo primo libro a capitoli.
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Many popular children's series are written as chapter books.
Molte serie popolari per bambini sono scritte come libri a capitoli.