Recommendations for guide books about Poland's Masurian Lakes?

Can anyone recommend any good books about the Masurian Lakes (not the historical kind, we're intending to visit)?

Google provides surprisingly few results so I'm struggling to find some good guide books, but ideally I'm looking for some in depth knowledge of the various lakes and places to stop for a boating holiday we're planning next summer.

I would prefer English books, but Polish would be fine too if nothing exists in English!

I've found this guide with English version:

issuu.com/fabrykautu/docs/przewodnik_09www

Check this out yet:

infinitelegroom.com/2013/05/23/how-to-sail-through-masuria-in-poland/
I had it at home (nice album):

kormoran.sklep.pl/wielkie-jeziora-mazurskie-jerzy-baranowski,id10022.html

Other (Polish) guide books about Great Mazurian Lakes:

rewasz.com.pl

Cool thank you, I will have a look through those!