Book is new but book cover is not in perfect condition

Dover Publications
Sergius Kagen: On Studying Singing

Written by a faculty member of the Juilliard School of Music, this guide explains clearly and logically what students can and cannot expect from singing lessons.
It also discusses in detail the study of musical notation and theory, ear training, languages, methods of teaching vocal technique, and related subjects.

Index:
The Musical Ear and the Natural Voice
The Study of General
The Study of the Verbal Contents in Vocal Music
The Study of Vocal Technic
The Vocal Student and the Teaching of Vocal Technic
The Study of Repertoire
The Incompetent Professional and the Competent Amateur