A book review addresses the subject matter of a literary work, and assesses effectiveness and value. Book reviews keep publishers and the public aware of what is being thought and written in a wide range of subjects. When a new book is issued, copies are sent to reviewers; subsequent reviews appear in literary magazines, academic journals, newspapers, and other periodicals. People everywhere depend on book reviews to direct them in their reading; many readers buy what commentators give particular attention. Competent reviewers are the best counselors for readers attempting to keep up with intellectual and aesthetic developments in the literary arts.