Oceanhouse Media has kicked off the fifth and final week of its big ‘Back to School’ Sale.

This week, all three titles in Oceanhouse Media’s ‘Smithsonian Series’ of omBooks (Oceanhouse Media digital books) have been discounted to $1.99 ($1 off) through October 2nd.

These titles are perfect for any dinosaur or penguin loving child.

Like all of Oceanhouse Media’s omBooks, these are universal apps! Also because they only require iOS 3.0 or later, you should work on your 2nd Gen iPod Touches as well.

Penguin’s Family – Smithsonian Oceanic Collection
$2.99 -> $1.99

It’s Tyrannosaurus Rex – Smithsonian’s Prehistoric Pals
$2.99 -> $1.99

Triceratops Gets Lost – Smithsonian’s Prehistoric Pals
$2.99 -> $1.99