Literary devices serve as means to state words in a colorful or expressive order. The book Little Women makes use of literary devices throughout the book.
For example, personification is used in this passage found in chapter 2 of the novel.
"and the winter sunshine crept in to touch the bright heads and serious faces with a Christmas greeting."
The words give intent to demonstrate that the winter sunshine is able to move by creeping and can have a voice with which to extend a greeting; human characteristics.
In the book Jo uses a type of hair iron on Meg's hair and burns it badly. The author relates Meg's hair burned hair to black pancakes. This is an example of a metaphor where one thing is being compared to something that it is not really like.
"I'm so sorry, but the tongs were too hot, and so
I've made a mess," groaned poor Jo, regarding the little black pancakes with tears of regret".