Book description:
Marvin simply has certain… needs. Needs which can only be satisfied by watching people suffer. Pedophiles annoy him, so he targets them. Don’t worry, though—Marvin’s not big on blood. He prefers the mental sort of suffering, which in many ways is all the more gruesome.
A therapist by day and a stalker and intruder by night, Marvin continues with his never-ending quest to induce and spectate emotional turmoil in strangers.
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The main concept came from the client:
"Two hands on the cover, the left hand is holding a teddy bear tightly as if it were
crushing it, the right hand is holding a very big knife that has slight blood on it."

So I rendered this in more of retro-ish style reminiscent of some horror covers and posters to balance the childish sight in a way more fitting to the genre and intended audience instilling a sense of discomfort by intense black and white on intense yellow BG.