Hahn offers a thoroughly readable approach to teaching Unix & Linux by emphasizing core ideas and carefully explaining unfamiliar terminology. The book walks readers through Unix & Linux systems from the very beginning, assuming no prior knowledge and laying out material in a logical, straightforward manner. An experienced author, Hahn writes in a clear, engaging, and student-friendly style, resulting in a text that is both easy and entertaining to read. Motivating pedagogy, such as “What’s in a Name?” boxes and highlighted Hints provide readers with interesting background and helpful tips. For additional resources, readers can visit the author’s website at www.mhhe.com/harleyhahn