First quarto

The earliest texts of William Shakespeare's works were published during the 16th and 17th centuries in quarto or folio format. Folios are large, tall volumes; quartos are smaller, roughly half the size (see Book size). The publications of the latter are usually abbreviated to Q1, Q2, etc., where the letter stands for "quarto" and the number for the first, second, or third edition published.

18 of the 36 plays in the First Folio were printed in separate and individual editions prior to 1623. Pericles (1609) and The Two Noble Kinsmen (1634) also appeared separately before their inclusions in folio collections (the Shakespeare Third Folio and the second Beaumont and Fletcher folio, respectively). All of these were quarto editions, with two exceptions: The True Tragedy of Richard Duke of York, the first edition of Henry VI, Part 3, was printed in octavo form in 1594, as was the 1611 edition of The most lamentable tragedy of Titus Andronicus. In chronological order, these publications were:

Six of these were classified "bad quartos" by Alfred W. Pollard and other scholars associated with the New Bibliography. Popular plays like 1 Henry IV and Pericles were reprinted in their quarto editions even after the First Folio appeared, sometimes more than once.

Shakespeare's poems were also printed in quarto or octavo form:

Differing from the quartos of the plays, the first editions of Shakespeare's narrative poems are extremely well printed. "Richard Field, Shakespeare's first publisher and printer, was a Stratford man, probably a friend of Shakespeare, and the two produced an excellent text." Shakespeare may have had direct involvement in the publication of the two poems, as Ben Jonson exercised in reference to the publication of his works, but as Shakespeare clearly did not do in connection with his plays.

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