This chapter explores the research related to whether career counselling is effective for individuals with vocational issues. In particular, there is considerable empirical support for career counselling related to career choice issues and searching for employment. Hence, practitioners can use this evidence to convince administrators, policymakers, parents, students, and other constituencies of the worth of career counselling. In addition, the chapter provides empirical evidence that practitioners can use to improve their effectiveness in working with people with career issues. This discussion mainly focuses on the results from older and newer meta-analyses regarding the ingredients that have a significant influence on effect sizes or the critical ingredients in career counselling. For example, there is considerable evidence that support from individuals, including the counsellor, may play an important role in the effectiveness of career counselling. Other factors that contribute to effective practice are also identified and discussed. The chapter further explores the need for additional research that addresses the most effective methods for providing career counselling. As the world of work becomes increasingly complex, it is important that researchers continue to explore the most effective strategies for assisting people in finding satisfying, meaningful, and productive work.