April 4

Shine by Lauren Myracle (Abrams/Amulet, $16.95; ISBN 978-0-8109-8417-2). 100,000 copies.

The Loud Book! by Deborah Underwood, illus. by Renata Liwska (Houghton Mifflin, $12.99; ISBN 978-0-547-39008-6). 100,000 copies.

April 5

Mortal Instruments # 4: City of Fallen Angels by Cassandra Clare (S&S/McElderry, $19.99; ISBN 978-1-4424-0354-3). 500,000 copies.

The 39 Clues: Vespers Risings by Rick Riordan, Peter Lerangis, et al. (Scholastic Press, $14.99; ISBN 978-0-545-29059-3). 500,000 copies.

The Emerald Atlas by John Stephens (Knopf, $17.99; ISBN 978-0-375-86870-2). 250,000 copies.
Warriors: Omen of the Stars # 4: Sign of the Moon by Erin Hunter (HarperCollins, $16.99; ISBN 978-0-06-155518-3). 200,000 copies.

Monster High: The Ghoul Next Door by Lisi Harrison (Little, Brown/Poppy, $16.99; ISBN 978-0-316-09911-0). 150,000 copies.

We All Fall Down: Living with Addiction by Nic Sheff (Little, Brown, $17.99; ISBN 978-0-316-08082-8). 150,000 copies.

Kingdom Keepers IV: Power Play by Ridley Pearson (Disney-Hyperion, $17.99 paper; ISBN 978-1-4231-3857-0). 150,000 copies.

Pirates of the Caribbean: Stranger Tides Junior Novel by James Ponti (Disney Press, $5.99 mass market paper; ISBN 978-1-4231-3942-3). 125,000 copies.

Plague: A Gone Novel by Michael Grant (HarperCollins/Tegen, $17.99; ISBN 978-0-06-144912-3). 100,000 copies.

Where She Went by Gayle Forman (Dutton, $16.99; ISBN 978-0-525-42294-5). 100,000 copies.

April 12

The Twilight Saga: The Official Illustrated Guide by Stephenie Meyer (Little, Brown, $24.99; ISBN 978-0-316-04312-0). 500,000 copies.

The Gathering by Kelley Armstrong (HarperCollins, $17.99; ISBN 978-0-06-179702-6). 275,000 copies.

Ladder to the Moon by Maya Soetoro-Ng, illus. by Yuyi Morales (Candlewick, $16.99; ISBN 978-0-7636-4570-0). 200,000 copies.

Encyclopedia Mythologica: Dragons and Monsters by Matthew Reinhart and Robert Sabuda (Candlewick, $29.99; ISBN 978-0-7636-3173-4). 100,000 copies.

April 18

Okay for Now by Gary D. Schmidt (Clarion, $16.99; ISBN 978-0-547-15260-8). 100,000 copies.

April 19

Morpheus Road #2: The Black by D.J. MacHale (S&S/Aladdin, $17.99; ISBN 978-1-4169-6517-6). 300,000 copies.

Eona by Alison Goodman (Viking, $19.99; ISBN 978-0-670-06311-6). 100,000 copies.

April 26

Summer and the City: A Carrie Diaries Book by Candace Bushnell (HarperCollins/Balzer + Bray, $18.99; ISBN 978-0-06-172893-8). 500,000 copies.Hooray for Amanda & Her Alligator!

by Mo Willems (HarperCollins/Balzer + Bray, $17.99; ISBN 978-0-06-200400-0). 200,000 copies.Charlie the Ranch Dog

by Ree Drummond, illus. by Diane deGroat (HarperCollins, $16.99; ISBN 978-0-06-199655-9). 150,000 copies.

True... Sort Of by Katherine Hannigan (Greenwillow, $16.99; ISBN 978-0-06-196873-0). 150,000 copies.

Meet the Dogs of Bedlam Farm by Jon Katz (Holt, $16.99; ISBN 978-0-8050-9219-6). 100,000 copies.

Abandon by Meg Cabot (Scholastic/Point, $17.99; ISBN 978-0-545-28410-3). 100,000 copies.