Requested move Do You Believe in Magic The Sense and Nonsense of Alternative Medicine WP SUBTITLES neither discourages nor encourages using subtitles depending on WP AT policy To be consistent with other articles named Do You Believe in Magic book is needed Of course if a question mark is unneeded then will do If the title with subtitle and the title without it are commonly used then we should implement WP DIVIDEDUSE and other applicable policies and guidelines like WP CONSISTENCY