| 100% | DATA | 4 | Book by Euclid about geometric problems |
| 42% | THEMISSINGPIECE | 15 | Book by 39-Across about finding and losing |
| 40% | OLDYELLER | 9 | Book by Fred Gipson about a dog protecting a ranch |
| 39% | CRITIQUE | 8 | "___ of Pure Reason," 1781 book by Immanuel Kant about metaphysics |
| 38% | PACKING | 7 | "___ for Mars," nonfiction book by Mary Roach about living in space |
| 38% | JUMANJI | 7 | Picture book by Chris Van Allsburg about an enchanted board game |
| 36% | MISERY | 6 | Stephen King book about author trapped by a fan |
| 36% | ABBOTT | 6 | Fantasy-crime comic book by Saladin Ahmed and Sami Kivela about a crime reporter |
| 36% | DUCHESS | 7 | 2017 book by Danielle Steel set in 19th century about a young woman, "The ___" |
| 36% | NIGHTMARE | 9 | "Welcome to Camp ___," 1993 "Goosebumps" book by R.L. Stine about a dangerous camp |
| 36% | BEING | 5 | "___ and Nothingness," 1943 book by the philosopher Jean-Paul Sartre about his existentialist ideas |
| 35% | CURIOUS | 7 | __ George, kids' book about a monkey by H.A. Rey |
| 35% | FALLINGMAN | 10 | 2007 book by 44-Across about a survivor of the 9/11 attacks: 2 wds. |
| 35% | UNIVERSE | 8 | "Finding Our Place in the ___," nonfiction book by Helene Courtois about our galaxy's home |
| 35% | THESEAAROUNDUS | 14 | Best-selling book by 19-Across about the life history of our oceans: 4 wds. |
| 35% | OURTURN | 7 | "It's ___ to Eat," book by journalist Michela Wrong about a Kenyan whistleblower: 2 wds. |
| 35% | COMPACT | 7 | "Everything and More: A ___ History of Infinity," 2003 book by David Foster Wallace about mathematics |
| 35% | ALLIN | 5 | Book about 32-Across that was coauthored by 1-/19-Across: 2 wds. |
| 34% | DUMMY | 5 | "Night of the Living ___," 1993 "Goosebumps" book by R.L. Stine about a ventriloquist's puppet |
| 34% | RAMONATHEPEST | 13 | One in a series of books by 46-Across about a girl starting kindergarten: 3 wds. |
| 34% | FISH | 4 | "The Rainbow ___" (children's book about a colorful swimmer by Marcus Pfister) |
| 33% | TIME | 4 | "The Right ___," 2017 book by Danielle Steel about a girl who publishes mystery novels under her pseudonym |
| 33% | HENRYANDRIBSY | 13 | One in a series of books by 46-Across about a boy and his dog: 3 wds. |
| 33% | UNIVERSEIN | 10 | "The ___ a Nutshell," 2001 book about theoretical physics by Stephen Hawking: 2 wds. |
| 33% | FURIOUSLYHAPPY | 14 | Memoir by 46-Across subtitled "A Funny Book About Horrible Things" (2 wds.) |
| 33% | JUNGLE | 6 | The __ Book, story about a boy raised by animals |
| 33% | BEACH | 5 | "Ghost ___," 1994 "Goosebumps" book by R.L. Stine about a pair of siblings and their encounters with ghosts |
| 32% | RUNAWAYS | 8 | Marvel Comic book series about rebellious superhero teens written by 29-Across since 2017 |
| 32% | SEX | 3 | Book by Madonna |
| 32% | BIGGIRL | 7 | 2010 book by Danielle Steel about a chubby little girl and her fight with self-esteem issues: 2 wds. |