Thanks to Thoughtco.Com again!  Here is a link to a helpful articles explaining abbreviations and acronyms for English Learners:

Abbreviations and Acronyms for ELL

The articles also gives advice on when to use abbreviations and acronyms and when not to, considering audience and intent.  For example, the article states:

For more uncommon acronyms, use the entire name followed by the acronym in parentheses the first time you use the acronym in written communications. For example: The International Monetary Fund (IMF) is responsible for loaning money to nations. As the world experiences more economic difficulties, the role of the IMF is often called into question. 

Enjoy, and thanks for reading!