Downloadable episode available here.
The Compleat Enchanter by L. Sprague de Camp and Fletcher Pratt is a compilation of the first three novellas in the Harold Shea/Enchanter series, “The Roaring Trumpet” (1940), “The Mathematics of Magic” (1940), and “The Castle of Iron” (1941, revised 1950). The Compleat Enchanter was first published as a Nelson Doubleday/Science Fiction Book Club hardcover in 1975 before being released as a Del Rey paperback in 1976, featuring a charming Brothers Hildebrandt cover painting:
De Camp and Pratt would later team up for two more Harold Shea stories, “The Wall of Serpents” (1953), and “The Green Magician” (1954). These stories fall outside of the Appendix N Book Club reading list since they were not collected in paperback until 1979, but Gary Gygax and Tim Kask must have been big fans since “The Green Magician” made its first reappearance in print since 1960 in issues 15 and 16 of The Dragon (1978)!
In any case, the Harold Shea series undoubtedly left its mark on Advanced Dungeons & Dragons, most obviously in the magical spell component requirements in The Players Handbook and the Against the Giants series of modules.
Update 10/09/2017: Harold Shea was written up for Advanced Dungeons & Dragons in Dragon magazine #59 (1982) by David “Zeb” Cook, the designer of the Dungeons & Dragons Expert Set (1981). Oddly, Shea was written up as a 7th level fighter with special spell abilities as his spellcasting powers were too free-form for the very magic system he helped to inspire….
The Mathematics of Magic: The Enchanter Stories of de Camp and Pratt is a hardcover omnibus of the de Camp and Pratt Harold Shea stories, along with the solo stories written by de Camp after Pratt’s death.
The Enchanter Reborn (Baen Books, 1992)
The Exotic Enchanter (Baen Books, 1995)
These anthologies from the 1990s feature de Camp’s solo Enchanter stories along with new contributions from other writers including former TSR game designer Tom Wham of Snit’s Revenge and The Awful Green Things from Outer Space fame.
G1-3 Against the Giants (1e) (RPGNow affiliate link)
Players Handbook (1e) (RPGNow affiliate link)
If you are in Brooklyn and want to join the IRL book club, then come over here.
The list of books we will discuss are outlined within this link.
And finally, the in-print omnibus, anthology, and online resources are living over here.