The book reports an empirical investigation about students' perceptions of career guidance, participation in the activities and career decision making self efficacy (CDSE). Various dimensions of these variables were examined and relationships explored with a view to assisting students to overcome the difficulties associated with career decision making. Similarly, inputs in the book would be very much relevant for improving performance among students through strengthen self efficacy positive dimensions and adjusting the weak side. However, stakeholders of school counselling programme where career guidance is housed,would find the book useful as it further justify the importance of career guidance in the school system which professionals have widely perceived as a service of necessity as it prepares students to get through competitions and to meet the challenges of the 21st century. Moreover, it equips students with information necessary for informed career decisions that have far significant impact in education, career and entire lifespan.