Whilst using a good teacher will always be the best route that option isn’t always available. Some of us will be basically self taught with maybe an occasional lesson from either a professional or a more experienced player. After a long gap I re-learnt to play as an adult and liked the steady paced engaging style of the ‘Tune a Day’ books (one and two). After completing those books I never found a natural follow on text for the self taught just plenty of stuff (like Arban) to skilfully run through with a teacher or blunder through by yourself. Much practice, if blundering at times, has just got me a first trombone chair in 4[SUP]th[/SUP] section level band – great move, but why did playing 1[SUP]st[/SUP] look easy enough when I played 2[SUP]nd [/SUP]:-?. I am wondering what practical and theory ‘teach yourself’ type books people use to advance their playing and what they would recommend as both ENJOYABLE to use and effective.