A Study in Scarlet
Sherlock Holmes #1 (Annotated)
📘 About This Book
A Study in Scarlet is a detective mystery novel written by Sir Arthur Conan Doyle, which was first published in 1887. It is the first story to feature the character of Sherlock Holmes, who would later become one of the most famous and iconic literary detective characters, with long-lasting interest and appeal. The book's title derives from a speech given by Holmes to his companion Doctor Watson on the nature of his work, in which he describes the story's murder investigation as his "study in scarlet": "There's the scarlet thread of murder running through the colourless skein of life, and our duty is to unravel it, and isolate it, and expose every inch of it."
📖 Summary
A Study in Scarlet is a foundational detective mystery novel that introduces the world to the brilliant and eccentric consulting detective Sherlock Holmes alongside his faithful companion, Doctor Watson. First published in 1887 and presented in a 2021 edition spanning 107 pages, this timeless work establishes the blueprint for the entire modern detective genre. The narrative begins as a fateful meeting brings Holmes and Watson together as flatmates at the famous address of 221B Baker Street. Watson, an army doctor recently returned from service in Afghanistan, quickly finds himself captivated and bewildered by his new companion's unique intellect, vast array of strange knowledge, and unconventional methods of deduction. Before long, the duo is called upon by Scotland Yard to investigate a bizarre and baffling murder case discovered in an abandoned house. As Scotland Yard inspectors struggle to make sense of the bloody crime scene, Holmes steps in to demonstrate his extraordinary observational skills, using logic, chemistry, and meticulous attention to detail to uncover clues that others entirely overlook. The title of the book is drawn from a memorable speech given by Holmes to Doctor Watson regarding the true nature of their profession. Holmes describes the murder investigation as his study in scarlet, explaining that there is a scarlet thread of murder running through the colourless skein of life, and their duty as detectives is to unravel it, isolate it, and expose every inch of it. Beyond its clever plotting and atmospheric Victorian setting, the novel holds a vital place in literary history for introducing characters who would go on to achieve enduring, global fame and cultural longevity. By showcasing how Holmes views the world through a lens of pure rationality and deductive science, the story invites readers to appreciate the intellectual pursuit of truth. Whether examining footprints, analyzing handwriting, or interpreting microscopic traces left behind at a crime scene, Holmes transforms detective work from a matter of lucky guesses into a structured discipline. This landmark story remains an essential starting point for anyone interested in classic mystery fiction and the origins of the world's most famous literary detective.
🎯 Key Lessons
⚖️ Pros & Cons
✅ Pros
Introduces iconic literary characters like Sherlock Holmes and Doctor Watson
Establishes the foundations of the modern detective mystery genre
Features engaging and atmospheric Victorian era storytelling
Presents clever deductive reasoning and fascinating investigative methods
⚠️ Cons
Pacing shifts significantly between the investigation and the historical backstory
Shorter page count may leave readers wishing for a more extended narrative
✍️ About the Author
Sir Arthur Conan Doyle (1859-1930) was a British author and physician best known for creating the detective Sherlock Holmes, whose stories established many conventions of the modern detective genre.
View all books →❓ FAQ
Who wrote A Study in Scarlet? +
The book was written by Sir Arthur Conan Doyle.
When was A Study in Scarlet first published? +
It was first published in 1887, with this edition published in 2021.
How many pages is this edition of the book? +
This edition spans 107 pages.
Who are the main characters introduced in the story? +
The story introduces Sherlock Holmes and Doctor Watson.
What is the origin of the book's title? +
The title comes from a speech by Holmes comparing a murder investigation to a scarlet thread running through the colourless skein of life.







