Literary criticism is the general name of literary writing-any hint used to analyze the source and influence of American literary appreciation, explain the meaning of literary texts and analyze the language in the texts. This is a very permeable term.

Literary theory is a branch of literary criticism, which involves a series of topics, from the correct way of reading literary texts to speculating on the nature of texts and the relationship with readers. If you like it, it's about literary criticism, so it's just a step away from literary experience. A strange phenomenon in the 20th century and beyond is the explosive growth of literary theories, most of which can be traced back to philosophical movements such as phenomenology and Marxism. I personally find that most literary theories are useless for understanding and appreciating literature.