The most important lists of Parker's writings are in the index to G.K. Fortescue, ed.,Catalogue of the Pamphlets .… Collected by George Thomason, 1640–1661, 2 vols. (London, 1908), and in Donald M. Wing, ed., Short-Title Catalogue …. 1641–1700, 2nd edn., revised and edited by John J. Morrison, et al. (New York, 1988). The Thomason tracts include a number of Parker manuscripts (which fall outside the compass of Wing); Thomason's title page attributions, though not infallible, vastly enlarge the Parkerian corpus. The second edition of Wing significantly emends the list in the first edition, and (apart from the manuscripts) is now the best available enumeration, as far as it goes. Neither list is entirely satisfactory. Both include a number of tracts that I do not believe Parker wrote, or are at best doubtfully ascribed to Parker; Wing omits post-1640 tracts Parker certainly did write, and Fortescue does not keep up with variant titles.

In the following, I have used the Thomason collection as a basis. That is because all of Parker's authentic printed writings from 1640 to Parker's death are to be found in one form or another in the collection. I have included the Thomason shelf mark and the Wing or STC number for each item for which it is available. Further comments (e.g., about multiple editions, reissues under different litles, and modern republication) are made as is appropriate.