For other sections, dates are the time of composition, not publication.
While put forward as posthumous collaborations while Derleth was alive, the status of these works as collaborations with Lovecraft was swiftly disputed after Derleth’s death.
Joshi (ed), The Ancient Track: Complete Poetical Works of H. P. Lovecraft (NY: Hippocampus Press, 2013.
(An earlier, less complete version was published by Night Shade Books in 2001).
The following are modern reprintings and collections of Lovecraft's work.