Consulting Psychology Journal: Practice & Research, 1996, 48(2), 57-152.
The ten articles comprising this special issue are devoted to exploring executive coaching—what it is, how it’s done, why it’s important, and how it might be improved. According to guest editor Richard R. Kilburg, the issue was designed “to provide an opportunity for leading practitioners to describe what they are doing and help define the core concepts and definitions of this emerging competency.” Cases give concrete examples for executives, coaches, and human resources professionals.
[This is probably the best single source about coaching theory and practice today.]
Fournies, F. (1978). Coaching for improved work performance. New York: Van Nostrand Reinhold. ...