Quote from the book "Джедайские техники. Как воспитать свою обезьяну, опустошить инбокс и сберечь мыслетопливо"

Suitable for smartphones, Android tablets, e-readers (except Kindle) and many programs

Accessible from nearly any device

Works on any computer

Works on any computer

Opens in Adobe Reader

Optimized and suitable for smartphones

Suitable for Android apps

Suitable for iOS devices (iPhone, iPad, iMac) and most reading apps

Development of FB2 format