Should I use people or characters on a mystery book cover?

For Mystery Book Covers @ BritishBookDesign, using people or characters on the cover can create intrigue and emotional connection. However, it's often more effective to use silhouettes, shadowy figures, or partial views (like a hand, eye, or back view) to maintain an air of mystery. This approach teases the story's suspense while leaving room for the reader's imagination. British Book Design specializes in creating covers that evoke curiosity and align with the mood of the mystery genre.