Since "Reader at Work 1" is a very well-known textbook used extensively in Turkey for the YDS (Yabancı Dil Sınavı) and YÖKDİL exams, the "features" usually refer to the specific structure and pedagogical design of the book.
You might wonder: Why search for a specific PDF when there are millions of free articles online? The difference is structure. A random news article does not teach how to read; it only offers content. reader at work 1 pdf