Fifteen episodes and only five books, which is fair enough for a nightly news show. Two of them are worth the post on their own.
I run Podshelf, a free site that tracks book mentions across hundreds of podcasts by reading the episode transcripts. This is The Daily Show slice for August, podcast feed included.
For Whom the Bell Tolls came up twice, both in the thirtieth anniversary episodes, as a lightning round answer. Favourite book, for whom the bell tolls. Favourite movie, Viva Zapata. If I were a tree, I would be a root.
How to Rule the World by Theo Baker, in the interviews episode. On the Faustian bargain Stanford has made with Silicon Valley. "It's truly a remarkable book. I highly recommend it."
The other three come from the Time Machine segment with Frank DeCaro, doing 2001 film reviews, which have aged into something quite funny. Harry Potter and the Sorcerer's Stone, "the book your friends pressured you into reading has finally been made into the movie that Warner Brothers is pressuring you into seeing." And The Fellowship of the Ring, "a three-hour epic about returning bad jewelry."
Full list with quotes and episodes: https://podshelf.io/podcasts/the-daily-show-ears-edition
