welcome! In case you are interested in Training & Certification you found the right place ;)
As you tagged #Agile don't miss to see the awesome content Atlassian put online, the Agile Coach: https://www.atlassian.com/agile/about
Also there is a group here in Community where you can go more in detail, if you want to:
https://community.atlassian.com/t5/Agile/gh-p/all-things-agile
Regards,
Daniel