The Ludlow-Santo Domingo Library is the world’s largest private collection of material on altered states of mind. The 50,000-plus-item collection documents psychoactive drugs and their physical and social effects. It covers everything from cultivation and synthesis to the myriad cultural and countercultural products such altered states of mind have inspired and influenced.

There are also approximately 2,000 film posters and stills, largely documenting drug-related films and psychedelic “happenings.”

A finding aid for the film poster collection can be found here.

A finding aid for the related Ludlow-Santo Domingo Library collection of lobby cards can be found here and film stills here.

More information on the entire collection and its history can be found in the Ludlow-Santo Domingo Library collection page.