Meaning: This sentence describes a situation where an adult male human silently or hushfully looked at and understood written or printed matter bound together in a set of pages.
Choice of Words: "Man" is an adult male human. "Read" is the past tense of "read", which means to look at and understand written or printed matter. "Book" is a set of written or printed pages bound together. "Quietly" means in a silent or hushed manner.