Share the guide: 
How To Cook Everything
For the cooking impaired, the iPad 2 is so much more than just an expensive new cutting board. New York Times columnist Mark Bittman's cookbook provides everything from recipes to cutting and preparation techniques.
Download How To Cook EverythingStar Walk
While waiting for NASA to respond to our job applications, we've been brushing up on our space knowledge with this app. Having a roadmap of the planets and constellations is a truly awesome way to learn about the night sky.
Download Star WalkKarajan Music Trainer
Owning a snazzy new iPad does not give you the right to be tone deaf. This app is a great tool for everyone from music theory students to hobby musicians, with lessons for learning to recognize intervals, chords, scales, pitch and tempo.
Download Karajan Music TrainerFlashCards Plus Pro
Learning a new language? Making good on your promise to remember every specie of jellyfish? Flashcards are as old as learning itself, and effective to boot. This app allows you to create your own, or download and import sets.
Download FlashCards Plus ProAudubon Guides
Walking in nature is fun until you can't figure out whether it's a black bear or brown bear that's charging at you. We use the official Audobon app, which has all of your outdoor questions covered from wildflowers to birds (and even keeps lists of everything you've spotted).
Download Audubon GuidesBrain Challenge
Unlike sea cucumbers, humans have brains and are encouraged to exercise them regularly. This app will help keep your mind sharp with puzzles, equations and quizes. Unfortunately, your pet sea cucumber won't be able to join in with you.
Download Brain Challenge