"Materials in Today's World" is an entry-level introduction to the exciting world of materials science and engineering, especially for those with little or no background in the field. The 3rd edition incorporates new content in many chapters, plus new chapters dealing with the emerging sub-fields of 'nanomaterials', 'nano-electronics', and 'biomaterials'. The text is intended for use in college elective courses for non-majors, but can also be used in support of introductory courses in materials science and engineering for majors and general science/engineering audiences, if appropriately supplemented by the instructor. At the high school level, the text can be employed to introduce units on materials science in science courses. "Materials in Today's World" is also an excellent reference text for anyone wanting to learn about the exciting field of materials science and engineering; instructors, students, and the general public.