Although I've been familiar with a SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis from my advertising undergraduate days, the coursework I took didn't cover the marketing tool PESTEL (also referred to as PESTLE). Last summer I stumbled across the framework, which I have found to be really helpful for brainstorming, researching and writing around newer sectors and less familiar consumer cohorts.
Standing for Political, Economic, Social, Technological, Environmental and Legal you find a more in-depth description at Professional Academy, which also leads to several marketing theory descriptions.
Since all of my post college career has taken place in China, I am bit rusty on the US market so I was searching the topic online and found some great refresher videos / baseline knowledge builders from the University of Central Florida, check them out below:
The information cycle below was also nice: