What is a quarto edition?

Answer:
n., pl. -tos.

  1. The page size obtained by folding a whole sheet into four leaves.
  2. A book composed of pages of this size.

[Short for Middle English (in) quarto, (in) the fourth part (of a sheet), from Medieval Latin (in) quārtō, from Latin, ablative of quārtus, fourth.]

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First answer by Grammaticus. Last edit by Grammaticus. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 4 [recommend question].