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His Japanese name "Bukku" is a play on the English word "book".
"Dewey" likely comes from Melvil Dewey, more specifically the Dewey Decimal System used for the classification and organization of library books that is named after him.
"Atlas", his Spanish name, comes from the same word used to refer to a book of maps.
His Italian name "Tomo", means "tome" (as in a large/scholarly book).
"Roman", his name in the German and Dutch versions, means "novel".
