Collected Ghost Stories by M.R. James. I usually have it by my bedside and occasionally read a story from it before I go to sleep, and when I go travelling I often bring it with me. I never get tired of the stories in this compilation, it's quiet, subtle, Gothic horror that I wish was more common these days. Some of my favourites include Lost Hearts, A View from a Hill, Oh Whistle and I'll Come to You My Lad, A School Story, The Residence at Whitminster, and A Warning to the Curious. I've even recently named a Hisuian Zorua "Montague" (M.R. James's first name) as an homage to this.