Book excerpt: The book is about Compressed air applications - referred as Pneumatics.The author had experience in building Pneumatic systems. During the last 12 years he has been teaching this subject to Engineering students at Caledonian College of Engineering, Muscat, Oman.The understanding of the subject is made a lot easier, by the step by step introduction of the concepts,components used and how to build a pneumatic circuit.Many illustrative examples/ exercises and circuit drawings are added to make the book most useful for the learners /students interested in the subject of fluid power( Pneumatics comes under the broader caption of Fluid power.)