I am a Doctor of Public Health Candidate with international health concentration at the Boston University. I am here to share my learning with other Public Health students and professionals. Having the opportunity to study in a graduate school is not always possible for all of interested people, so I decided to share and disseminate my knowledge with people who are interested. I try to summarize the pieces that I found interesting during my journey at the school of public health. I was out of school for almost 10 years after my graduation as a medical doctor from Shahid Beheshti Medical School in 1995, therefore I know how difficult could be adjustment with the new applications in the era of information age. I summarize my learning and I hope you share your idea and comments with me. Your contribution helps me to learn more in-depth and understand the Public Health. Thanks