Thanks for the good wishes :).
I don't plan on learning in 4 weeks, that's forsure. I'm actually starting my next Polish course with real live students and teachers next week, but it's nice to have a small reference for train trips, idle moments, reading in the bathroom, whatever! Doing a little research, it turns out that there are LOTS of intro/basic Polish texts out there. I picked this one from some recommendations and hope I can learn something from it.