In Mayan Splendor is a collection of poems by Frank Belknap Long. It was released in 1977 by Arkham House in an edition of 2,947 copies. The book is illustrated by Stephen E. Fabian and contains the complete contents of Long's earlier verse collections, A Man from Genoa (1926) and The Goblin Tower (1935) plus additional poems.
Chalker, Jack L.; Mark Owings (1998). The Science-Fantasy Publishers: A Bibliographic History, 1923-1998. Westminster, MD and Baltimore: Mirage Press, Ltd. p. 52.
Joshi, S.T. (1999). Sixty Years of Arkham House: A History and Bibliography. Sauk City, WI: Arkham House. pp. 142–143. ISBN0-87054-176-5.
Nielsen, Leon (2004). Arkham House Books: A Collector's Guide. Jefferson, NC and London: McFarland & Company, Inc. p. 124. ISBN0-7864-1785-4.