|PDF (Portable Document Format)|
Read by all devices, used on computers since the late ‘90s
|ePub (electronic publication)|
Standard format, easily read in a variety of sizes. Video and audio can be embedded. Read on your iPad!
|iBook format (IBA) Multi-Touch book|
Created with iBook Author. Viewed only on an iPad 2 or greater
|MOBI (Kindle format)|
Kindle format, .kf8 is the latest format for Kindle Fire (MOBI is not to be confused with an eInstruction classroom tool.)