Technical English or simplified technical English is a specialized controlled language, specifically designed for industrial usage. It has reduced ambiguity, made translation easier, improved clarity, facilitated machine translation and improved comprehension. Technical English is divided into two major parts namely, dictionary and writing rules. This book elucidates the concepts and innovative models around prospective developments with respect to technical English. Such selected concepts that redefine this subject have been presented in it. This textbook will serve as a valuable source of reference for those interested in this field.