"In my opinion, it is the most valuable book about seriously flash games developing available on the market. The most important thing: authors does not avoid complex techniques, they just explain problems on real-life game examples. Highly recomended!"
You can read the rest here.
Interesting story (to me anyway). Back when I was making games full-time for hotwheels.com, the fine people of Poland were some of the most frequent players of them. Synchronicity? I think so.