The "one book" question

[ann reid]

I started, as an adult with a pretty good stock of musicality, with Arbans, added Rochut about 4 months in, began Horovitz last Fall in my end year.

Now I’m just starting to do a little practice in treble clef, basically on things I’ve picked for myself, like Haydn Trumpet Concerto, mvt. II.

[MarChant]

By the way, my euphonium teacher also recommends Vining: Daily Routines...

Yes, for daily use, the Daily Routines are great. This is truly the book I use every day. I've had good results with the Euphonium-version by David Vining, so the first thing I did when I switched to French Horn was buy the French Horn version of Daily Routines (well, the student version), by Marian Hesse.