This four-book set of warm-ups by Harold Branch is the most no-nonsense, fundamentals-based approach to a daily warm-ups for the trumpet that I have ever seen.
What I love about this set of books is that it is not just a warm-up for you chops (which it is), and not just a warm-up for your fingers (which it is, too), but it is also a warm up for your mind as it takes you though all tonalities in the Major and Minor keys, followed by Diatonic Chords & Inversions, followed by Chromatic Chords & Inversions. After all, what is the point of warming up your lips if you haven’t also warmed up your mind?
To the left I have dropped the first few pages of each 4 books so you can see what they look like. Give them a try, then grab the full 4 book set at a 45% discount over the individual volumes at the link above. Enjoy!