In Mortimer Adler’s essay, “How To Mark a Book” the author expresses through his thesis an argumentative, yet passionate tone by encouraging his readers to “read between the lines.” Thus meaning readers must literally write in between the lines in order to be an efficient reader. According to Adler, in order to truly obtain ownership of a book one must record personal thoughts. The author expresses to the audience that a book holds a significant meaning beyond its physical being. Alder goes on to categorize book owners: The first book owner has an enormous amount of books, but has yet to read them, therefore not meeting Alder’s standards of what it means to own a book. The second book owner read their books thoroughly; However fail to make