Yes, let me provide you with some useful links that will help you get started with Community Analyst.
1. We have a quick start video that briefs Community Analyst and explains how to get more detailed information on community.
2a. Here is the link to Community Analyst Help documentation that has a "Get Started" section. The documentation also has detailed sections for every workflow in the application.
b. Also, within the application there is quick start video for each workflow.
3. You could also use the "Guided tour" to learn more about Community Analyst. You can access it from 'Help' section within the application.
4. If you are looking for more detailed Step-to-step-guides, the help documentation has step-to-step guide for few of the workflows.
I am also providing the link to Esri's data documentation. The documentation explains Esri's (Demographic, Spending, Business, lifestyle) data in detail.
We hope this helps you get started with Community Analyst. Please let us know if you have any additional questions.
Community Analyst team