![WritersWeekly Trivia Question for 12/13/2018 – Win A Free Book From BookLocker.com! WritersWeekly Trivia Question for 12/13/2018 – Win A Free Book From BookLocker.com!](https://i0.wp.com/writersweekly.com/wp-content/uploads/2018/12/riddle_1544741931-e1544741941432.png?resize=400%2C400&ssl=1)
Congratulations to Johnny Townsend for correctly answering that Amazon uses MOBI files for their “look inside” feature.
According to last week’s issue of WritersWeekly – what type of file does Amazon use for their “look inside” preview feature?
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