The Books are;
A Very Scary Solstice - book of Cthulhu songs that goes with the music CD (never been opened and is new/mint condition)

The Curious Sea Shanty Variants of Innsmouth Mass. - book is a great prop for Call of Cthulhu rpgs and includes songs that accompany the Sea Shanties CD (never been played/used)

Archaeological Interpretations of Myth Patterns in the Iconography of the Codex Beltran-Escavy - another really useful prop for any tabletop or live action Cthulhu roleplaying, and works as a s standalone read for anyone interested in HPL's stories.