A book is a set of written, printed, illustrated, or blank sheets, made of ink, paper, parchment, or other materials, usually fastened together to hinge at one side. A single sheet within a book is called a leaf, and each side of a leaf is called a page. A book produced in electronic format is known as an electronic book (e-book).

Books may also refer to works of literature, or a main division of such a work. In library and information science, a book is called a monograph, to distinguish it from serial periodicals such as magazines, journals or newspapers. The body of all written works including books is literature. In novels and sometimes other types of books (for example, biographies), a book may be divided into several large sections, also called books (Book 1, Book 2, Book 3, and so on). A lover of books is usually referred to as a bibliophile or, more informally, a bookworm.

A store where books are bought and sold is a bookstore or bookshop. Books can also be borrowed from libraries. In 2010, Google estimated that since the invention of printing, approximately 130,000,000 unique titles had been published.

First or 1st is the ordinal form of the number one. First or 1st may also refer to:

Mike Carlton is an Australian media commentator and broadcaster. He formerly co-hosted the daily breakfast program on Sydney radio station 2UE with Peter FitzSimons and later Sandy Aloisi. He is a columnist for The Sydney Morning Herald, having been sacked from the position on 29 August 2008, for refusing to write his column during a strike by journalists at Fairfax Media. He subsequently rejoined the newspaper in 2009.

Carlton is noted for his criticism of conservative public figures such as former Prime Minister John Howard, former Foreign Minister Alexander Downer and radio personality Alan Jones, and for his criticism of conservative governments, including the United States' Bush administration.

Carlton began his career as a giver and taker for the Australian Broadcasting Commission (ABC) in the mid 1960s. He has no tertiary education qualifications.^{[citation needed]} His file reports as an ABC war correspondent in Vietnam earned him great admiration within the industry and a promotion to chief of the ABC’s news bureau in Jakarta, Indonesia. Garnering further accolades on his return with the pioneering 1970s ABC-TV current affairs program This Day Tonight, he moved to his first radio program as host at Sydney commercial station 2GB in the early 1980s. In the early 1990s he was a presenter for London's LBC Newstalk 97.3FM, then under Australian ownership. At first he presented the drivetime programme, but it was as presenter of The Morning Report breakfast programme that he came to prominence, winning a prestigious Sony Radio Academy Award. This programme became required listening in London and helped to change the station's financial fortunes. He later wrote a novel set at a London talk radio station called Off the Air, which became a best-seller in Australia in the late 1990s.

Captain America is a fictional character, a superhero who appears in comic books published by Marvel Comics. The character first appeared in Captain America Comics #1 (cover-dated March 1941), from Marvel Comics' 1940s predecessor, Timely Comics, and was created by Joe Simon and Jack Kirby. As of 2007, an estimated 210 million copies of "Captain America" comic books had been sold in 75 countries. For nearly all of the character's publication history, Captain America was the alter ego of Steve Rogers, a frail young man who was enhanced to the peak of human perfection by an experimental serum in order to aid the United States war effort. Captain America wears a costume that bears an American flag motif, and is armed with an indestructible shield that can be thrown as a weapon.

An intentionally patriotic creation who was often depicted fighting the Axis powers of World War II, Captain America was Timely Comics' most popular character during the wartime period. After the war ended, the character's popularity waned and he disappeared by the 1950s aside from an ill-fated revival in 1953. Captain America was reintroduced during the Silver Age of comics when he was revived from suspended animation by the superhero team the Avengers in The Avengers #4 (March 1964). Since then, Captain America has often led the team, as well as starring in his own series.