February 1

Bone Handbook by Jeff Smith (Scholastic/Graphix, $9.99 paper; ISBN 978-0-545-21142-0). 100,000 copies.

Tunnels #3: Freefall by Roderick Gordon and Brian Williams (Scholastic/Chicken House, $18.99; ISBN 978-0-545-13877-2). 100,000 copies.

February 2

The 39 Clues #7: The Viper's Nest by Peter Lerangis (Scholastic, $12.99; ISBN 978-0-545-06047-9). 500,000 copies.

Sweet Little Lies: An L.A. Candy Novel by Lauren Conrad (HarperCollins, $17.99; ISBN 978-0-06-176760-9). 150,000 copies.

February 9

Heist Society by Ally Carter (Disney-Hyperion, $16.99; ISBN 978-1-4231-1639-4). 200,000 copies.

The Chronicles of Vladimir Tod: Eleventh Grade Burns by Heather Brewer (Dutton, $16.99; ISBN 978-0-525-42243-3). 200,000 copies.

Encyclopedia Mythologica: Gods and Heroes by Matthew Reinhart and Robert Sabuda (Candlewick, $29.99; ISBN 978-0-7636-3171-0). 150,000 copies.

The Easter Egg by Jan Brett (Putnam, $17.99; ISBN 978-0-399-25238-9). 150,000 copies.

Seekers #4: The Last Wilderness by Erin Hunter (HarperCollins, $16.99; ISBN 978-0-06-087131-4). 125,000 copies.

Gone by Lisa McMann (Simon Pulse, $16.99; ISBN 978-1-4169-7918-0). 125,000 copies.

February 15

Gossie Plays Hide-and-Seek by Olivier Dunrea (HMH, $13.99; ISBN 978-0-547-24296-5). 100,000 copies.

February 16

Cat the Cat, Who Is That? by Mo Willems (HarperCollins/Balzer + Bray, $10.99; ISBN 978-0-06-172840-2). 150,000 copies.

Let’s Say Hi to Friends Who Fly! by Mo Willems (HarperCollins/Balzer + Bray, $10.99; ISBN 978-0-06-172842-6). 150,000 copies.

Disney•Pixar Rip-Roaring Adventures, 3-in-1 Read-Along Storybook & CD (Disney Press, $14.99; ISBN 978-1-4231-2097-1). 100,000 copies.

Enchanting Tales, 3-in-1 Read-Along Storybook & CD (Disney Press, $14.99; ISBN 978-1-4231-1938-8). 100,000 copies.

February 23

The Night Fairy by Laura Amy Schlitz, illus. by Angela Barrett (Candlewick, $16.99; ISBN 978-0-7636-3674-6). 100,000 copies.

My Garden by Kevin Henkes (Greenwillow, $17.99; ISBN 978-0-06-171517-4). 100,000 copies.