| X In Flight | Rivers, Karen | 590 | 3.3 | - | 14 | 54,243 | Fiction |
| X Marks The Spot! | Penner, Lucille Recht | 190 | 2.4 | K | 2 | 1,057 | Fiction |
| X'ed-Out X-Ray, The | Roy, Ron | 640 | 3.4 | N | 4 | 8,713 | Fiction |
| X-Ray Picture Book Of Big... | Jessop, Joanne | 1040 | 8.1 | NR | 3 | 9,310 | Nonfiction |
| X-Rays And Other Fun Things | Scarry, Richard | 500 | 2.8 | K | 2 | 637 | Fiction |
| X-traordinary X-tremes | Packard, Mary | 1140 | 4.9 | R | 4 | 7,016 | Nonfiction |
| Xanadu Adventure, The | Alexander, Lloyd | 820 | 6.2 | - | 10 | 32,738 | Fiction |
| Xtreme Sports Cutting Edge | Maxwell, E.J. | 1020 | 4.9 | R | 5 | 11,690 | Nonfiction |
| Xtreme Sports Fast Track | Layden, Joe | 980 | 4.9 | R | 5 | 12,054 | Nonfiction |
| Xtreme Sports Summer | Layden, Joe | 930 | 4.9 | R | 5 | 10,879 | Nonfiction |
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