What is a bookworm?

| There are two kinds of bookworms..... children and grownups that like to read are often called "bookworms". It's a good thing to be called a bookworm! |
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The other kind of "bookworm" is a insect that likes to eat the pages of books. They are usually moth or beetle larvae (which are tiny pale worms). |
Do you know books can breathe?