Although the effect of perfectionism on academic performance has received increasing attention in recent years, little has been written about the ways it affects career development. Combined with increasing pressures to succeed at the workplace, perfectionism may adversely affect individuals sense of accomplishment and their actual achievements. Alternatively, for some workers, perfectionism may have positive and adaptive functions. Career practitioners will undoubtedly work with clients whose career development might be affected by perfectionistic beliefs and standards. It is important for career practitioners to become knowledgeable about perfectionism and counteract its potentially negative influences. (Contains 37 references.) (Author/CGP)