I love how the right book comes along at just the right time when you need some inspiration and wisdom on a particular subject. I just finished The Practice of Practice by Jonathan Harnum on audible and was so blown away I ordered the hardback and am reading it a second time. I wish I had this book earlier in life, but it's never too late to learn something new....and the study of music is forever endless.  Every musician (or anyone, as the concepts can be applied to any life skill) should read this beautifully written and well researched book!