How do the two authors' use point of view reveal the thoughts of the main characters in each story?

In "The Great Gatsby," F. Scott Fitzgerald uses first-person point of view through Nick Carraway to provide insights into Gatsby's character while also showing Nick's own biases and perceptions of others. In "To Kill a Mockingbird," Harper Lee employs a first-person perspective through Scout Finch to convey not only Scout's understanding of her father Atticus but also her evolving perspective on the people and events of her small town.