Title: Planets and dimensions
Subtitle: collected essays of Clark Ashton Smith. Edited by Charles K. Wolfe.
Description: A collection of short essays on poetry, fantasy, science fiction, the Lovecraft mythos, etc.  Some were letters in old pulp magazines from the 1930's, some were contributions from fanzines (amateur publications), etc.  They include material on poet George Sterling, writer M. R. James,  William Hope Hodgson, and of course H. P. Lovecraft.  It was published by Jack Chalker's "Mirage Press" in  1973, as a 500 copy hardback edition and an unnumbered 750 copy paper cover edition.
Subjects: English Fantasy fiction, History and criticism, American Fantasy fiction
People: Lovecraft, Sterling