Your question asks what is financial literature.
When you look at the word "financial literature", you can see that it has the word "financial" in it, so that means that it's going to be based off of finance.
Financial literature is knowledge and skills someone has in finance. What this means is that someone has knowledge on how finance works and know ways to stay financially stabled. The knowledge that someone could have is how money works, how to manage the money, and how to turn the money they already have into more money.
The knowledge that an individual could attain from financial literacy could help them in the long run, in which it's highly recommended to learn financial literacy, due to the fact that tons of people are going into debt because they don't know how to manage their finances.
To sum it up, people who know financial literacy would have a high chance in knowing how to manage their money and stay out of debt.