| Answer | Crossword Clue |
|---|---|
| DIET | Recurring bestseller subject |
| ENRON | Subject of the 2005 bestseller "Conspiracy of Fools" |
| LUSITANIA | Subject of the 2015 Erik Larson nonfiction bestseller "Dead Wake" |
| MOTIF | Recurring subject |
| motif | recurring subject or theme |
| motifs | recurring subject or theme |
