This week, some beloved characters from children's book series make their app debuts.

Title: Go, Clifford, Go!

Publisher: Scholastic

Available: January 3

Price: $4.99

Background: The app is based on the Scholastic book series by Norman Bridwell. There are more than 126 million books in print from the Clifford series.

Interactive features: The beloved Big Red Dog encounters trucks, trains, planes, and motorcycles. Kids can tilt the iPad to make the trees sway, waves roll and characters animate. After reading the story, kids can play an action game in which they drive the vehicles featured in the story and collect bones for Clifford.

Title: I Love You Through and Through

Publisher: Scholastic

Available: January 3

Price: $4.99

Background: Based on the Scholastic book by Bernadette Rosetti-Shustak and illustrated by Caroline Jayne Church, which has more than 1.8 million copies in print.

Interactive features: Aimed at preschoolers, the app has “Touch & Tilt” animated interactions, so kids can touch words to hear the story and then touch again to pause; touch characters or objects to watch an animation and see them move; and tilt the iPad to watch the story characters lean and move.

Title: The Magic School Bus: Oceans

Publisher: Scholastic

Available: January 3

Price: $7.99 for full app; Lite Version available

Background: The app is based on the Scholastic book The Magic School Bus: On The Ocean Floor by Joanna Cole and illustrated by Bruce Degen. The MSB series has more than 58 million books in print.

Interactive features: Kids can touch the words to hear the story and then touch again to pause and touch speech bubbles to hear what characters are saying; and tilt to find underwater bubbles that grant access to 26 real photos and 11 videos of underwater animals and plant life. There is a re-playable game.

Title: Zoo Train

Publisher: Busy Bee Studios

Available: December 16, 2010

Price: $1.99

Background: The app is an original concept, inspired by app creator Susy Christiansen’s preschoolers. It consists of five games focused on trains and animals, which teach word building, music, patterns, shape matching, and creative play.

Interactive features: Kids drag train tracks and letters, and can play a set of train whistles by touching them.

Title: Animals: Slide and Find; Trucks: Slide and Find

Publisher: Macmillan/Malloc Media LLC

Available: December 7, 2010

Price: $1.99 each

Background: The apps are based on the popular board books from Priddy Books.

Interactive features: With the Animals app, babies and toddlers can see pictures of animals and hear the sounds they make. There are questions about the animals, and children can slide their fingers across the screen to reveal the correct answer. The Trucks app allows kids to connect the names of each truck they see with the sounds each create.

To be included in this weekly listing, please send us the app title, the book or other source for the app (if there is one -- original apps are fine, too), when it was released, price, background of the book (including such info as copies in print, when it was released, awards, and brief plot summary), and the interactive elements of the app. We also need the promo codes, and an image from the app if possible. Send all apps to Jim Milliot, and send news of children’s apps to Diane Roback as well.