What is the most popular book Robert Louis Stevenson wrote?

The most popular book by Robert Louis Stevenson is undoubtedly Treasure Island. It's a classic adventure novel that has captivated readers of all ages for over a century.

While Stevenson wrote many other notable works, like *Kidnapped*, *The Strange Case of Dr. Jekyll and Mr. Hyde*, and *A Child's Garden of Verses*, Treasure Island remains his most enduring and widely recognized literary achievement.