Everybody will give their own advice, but from my experience there are two aspect of it: (1) management in general, (2) issues related specifically to managing

Everybody will give their own advice, but from my experience there are two aspect of it: (1) management in general, (2) issues related specifically to managing a team developing software. As for (1), I personally recommend the Theory of Constraints. To simplify: you identify weak points and fix them. There are several more modern management theories, but this one is particularly efficient and simple enough to apply as a part of your daily routine. As for (2), I'd recommend being open minded, but at the same time following common sense, especially if everybody is convincing you that you should follow some modern trend.