Here's why:
* "The Philosophy of Composition" is an essay in which Poe outlines his process for writing his famous poem "The Raven." He analyzes his choices regarding form, meter, theme, and effect, offering his own theories about the creation of successful literature.
* "On Writing" is a memoir that blends personal anecdotes with King's insights into the craft of writing. He shares his writing process, offers advice to aspiring authors, and reflects on the importance of reading and dedication to the craft.
While both works delve into the creative process and offer insights into writing, they are not creative works themselves. Instead, they analyze and reflect on the craft of writing, making them fall into the genre of literary criticism.