Genealogy / Last Name Information - Lewandowski [16]

I'm not sure about Lewandowski, can you tell me? it's very common, however I have heard different things from different sources.

Genealogy / The typical Polish look, or all Eastern Europeans [656]

I'm Polish and I'm a redhead. is this common?

Language / The most effective methods to learn the Polish language? [56]

I'm reading the Harry Potter series in Polish. I have them memorized in english practically. So I figured why not use a book I've read a million times to help me learn Polish?