A book description is a summary that provides an overview of a book's plot, characters, or topic to persuade potential readers to buy it. It acts as an advertisement, using a compelling hook, a concise summary, and a call to action to generate interest without revealing the entire story. These descriptions are found on a book's back cover and online retailer pages, aiming to inform readers if the book is a good fit for them. 

Key components of a book description

• Benefits (for non-fiction): Explain how the book can solve a reader's problem or provide them with value. 
• Call to action: End with a line that encourages the reader to take the next step, like purchasing the book. 
• Hook: Start with an intriguing opening line, question, or statement to grab the reader's attention. 
• Summary/Synopsis: Briefly outline the book's main conflict, plot, or subject matter in a concise and engaging way. 
• Unique selling points: Highlight what makes the book stand out, such as a compelling protagonist, a unique setting, or a surprising twist.