John Locke (1632-1704) seems to have had little enthusiasm for seeing his name on title pages, and though he wrote much, published little until 1686, when, apparently persuaded by friends, he began to edit and release his writings for publication. Even then, some of them did not appear with his name. They were popular, however, and went through multiple editions and issues even in Locke's lifetime, in consequence of which he was constantly annoyed by the need to correct printer's errors, but thereby also given many opportunities for making revisions. The publication of Locke's works thus became, so to speak, a kind of ongoing process, complicated though probably not atypical for the type of work published and the publishing practices of the time. This major new work makes sense of this mass of bibliographical information.