The Flutist's Vade Mecum, by Walfrid Kujala second edition of 2012, is a essential reference book for a flute instructor or serious flute student.  This new hard bound edition is beautifully presented and contains many valuable techniques.  The section trill drills is very unique with its rising chromatic trills that use the full range of the flute.  Suggestions on using the proper fingerings are mentioned when playing the drills up an octave. This edition should be in ever Flute teachers' library. MusRefbk 0003