Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

Cheaper by the Dozen is a semi-autobiographical novel written by Frank Bunker Gilbreth , Jr. and Ernestine Gilbreth Carey , published in 1948 . The novel recounts the authors ' childhood lives growing up in a household of 12 kids . The bestselling book was later adapted into a feature film by Twentieth Century Fox in 1950 and followed up by the sequel , Belles on Their Toes ( 1950 ) , which was adapted as a 1952 film .
Cheaper by the Dozen