You can read more about the basics of health informatics here, including some alternative credentials to consider: www.coursera.org/articles/what-is-health-informatics. If you want a more in-depth introduction, you might consider a course like the Data Science of Health Informatics from Johns Hopkins University: www.coursera.org/learn/the-data-science-of-health-informatics. Hope that helps!
I don't want any degree.... I'm interested in healthcare informatics but i don't know any details about it
You can read more about the basics of health informatics here, including some alternative credentials to consider: www.coursera.org/articles/what-is-health-informatics. If you want a more in-depth introduction, you might consider a course like the Data Science of Health Informatics from Johns Hopkins University: www.coursera.org/learn/the-data-science-of-health-informatics. Hope that helps!