Short Answer 
The text explains the concept of books as bound written works providing information and stories. It highlights Agatha Christie as a famous author of detective novels, noting her significant contributions to the genre and listing notable works such as “Crooked House” and “Five Little Pigs.”
Step 1: Understanding Books
Books are written works that provide information and stories, typically bound within covers. They can encompass a variety of topics and genres, including fiction and nonfiction. In the context of literature, a book can serve as a medium for storytelling, education, and information dissemination.
Step 2: Agatha Christie and Her Detective Novels
Agatha Christie was a renowned English writer famous for her detective novels that feature fictional detectives solving crimes. Her contribution to the genre is significant, making her one of the most popular authors of all time. Her works often revolve around themes of mystery, suspense, and the intricacies of human behavior.
Step 3: Notable Works by Agatha Christie
Among Christie’s most notable books are:
- Crooked House
- Five Little Pigs
- The Big Four
- N or M?
- Endless Night
Each of these titles encapsulates elements of detective stories and the themes of crime fiction, reflecting Christie’s masterful storytelling abilities and engaging plots.