I attended a course at osec.pl and I can confident...

I attended a course at osec.pl and I can confidently say it was one of the best learning experiences I've had. The instructors are experts in their field and the course content is top-notch. The practical exercises were invaluable in reinforcing the concepts. Osec - open source education center exceeded my expectations and I would highly recommend their courses to anyone interested in open source education.