The series 'ICSE Understanding Computer Studies' contains a number of special features: The topics are expleined in lucid language in a systematic way. The series provides basic and comprehensive knowledge of the subjact as per today's needs. The presentation of the books makes the subject interesting for the students. The series also contain a high-level language at all level to develop the fundamental concept of programming techniques. I am confident that the series will be very useful and beneficial to the students and others who want to learn computers.