PocketBook is the leading e-reader producing company in this part of the world. Their first models 301 (6 inches) and 360 (5 inches) where maybe the best e-readers all over the world some years ago. But these days they still use low contrast e-ink screens, while most of other leading producers already use advanced "pearl" e-ink screens. As for the price it is too high with respect to that of others. These days it more affordable to buy AmazonKindle DX (9.7 inches) with the advanced screen.

Prices for PocketBook in Russia
PocketBook 602 - 300 USD
PocketBook 902 - 500 USD
PocketBook 903 - 650 USD