"A Series of Unfortunate Events" is a children's book series written by Daniel Handler under the pen name Lemony Snicket. The series consists of 13 novels, and it follows the unfortunate lives of three orphaned siblings: Violet, Klaus, and Sunny Baudelaire. After their parents perish in a mysterious fire, the Baudelaires are placed in the care of the villainous Count Olaf, who is determined to seize their inheritance.

Throughout the series, the Baudelaires encounter a variety of eccentric characters and find themselves in increasingly perilous situations. As they navigate a world filled with treachery, deception, and a secret society known as V.F.D., the siblings use their unique talents to unravel the mysteries surrounding their parents' death and the ominous circumstances that surround them.

The books are known for their dark humor, wordplay, and the narrative interruptions by the fictional character Lemony Snicket, who serves as both the author and a character within the story. The series explores themes of resilience, resourcefulness, and the nature of good and evil, providing a captivating and often melancholic tale for readers of all ages.