Scholars agree that applying critical thinking is a systematic way to solve problems. More often it is being used in both professional and personal settings; in classrooms, in clinical practices, in politics, in social issues and in relationships. Moreover, on a daily basis, we are infiltrated with information at the click of a button. Critical thinking can be applied to what we read, hear, see or communicate in order to know what to do. For decades, scholars have debated the definition of critical thinking as well as the application of critical thinking. Consequently, this book provides a comprehensive look at the definition of critical thinking and the application of critical thinking across disciplines. The book will be very useful to educators who are interested in learning critical thinking and teaching critical thinking to students. The book is also for students who want a competitive edge in critical thinking among their peers. Managers and trainers of employees can use critical thinking to find solutions to problems. Professionals in clinical practices, such as marriage & family therapists, licensed professional counselors, or social workers can also use this book.