This invaluable book outlines skills essential to the helping process (such as building relationships and facilitating client self-exploration), deals with pragmatic concerns (such as keeping up with research and documenting your work), and focuses on specific areas (such as a brief counseling and cross-cultural counseling).
Just as most writers would not be without Strunk and White's now classic The Elements of Style, most counselors, whatever their specialty, should have a copy of the Elements of Counseling at their fingertips!