The book covers up the basic concepts of Operations research and scheduling theory and focuses on 'n' job '2' machine Flow Shop Scheduling, where the times to process the jobs are not at the whole arbitrary but have a definite relation with one another. It is assumed the minimum of the times to process the jobs on second machine can never be less than the maximum of the times to process the jobs on the first machine. The main intention of the study is to lessen the total of the times spent in waiting by all the jobs.