Evernote is a cross platform note taking application. The notes supports webpages, images, audio notes, hand written notes etc.
Everything you store in your Evernote account is automatically synced across all of your devices, making it easy to capture, browse, search and edit your notes everywhere you have Evernote, including smartPhones, tablets, computers and on the Web.
MakeUseOf released a eBook “How to use Evernote: The Unofficial Manual”, which covers the following contents
What Is Evernote?
An Overview Of The Desktop App
An Overview Of The Smartphone Apps
Tips, Tricks & Hacks
Evernote Add-Ons / Plugins
You can Read the guide online or also can download it as a pdf too from the MakeUseOf web site here