Jeff Leek

Jeff is an Associate Professor of Biostatistics and Oncology at the Johns Hopkins Bloomberg School of Public Health. His research focuses on public health genomics, data science as a science, and research on the scientific literature. He is also co-creator of the Johns Hopkins Data Science Specialization on Coursera (https://www.coursera.org/specializations/jhu-data-science) that has enrolled over 4 million. He is a co-editor of the journal Biostatistics. He writes a blog at Simply Statistics and is the author of the best-selling book “The Elements of Data Analytic Style” (https://leanpub.com/datastyle/).

Roger Peng

Roger D. Peng is a Professor of Biostatistics at the Johns Hopkins Bloomberg School of Public Health. He is also a co-founder of the Johns Hopkins Data Science Specialization, the Simply Statistics blog where he writes about statistics for the general public, the Not So Standard Deviations podcast with Hilary Parker, and The Effort Report podcast with Elizabeth Matsui. Roger conducts research on developing statistical methods for problems in environmental health. He has made substantial contributions to understanding the health effects of indoor and outdoor air pollution in the U.S. and around the world. He is the recipient of the 2016 Mortimer Spiegelman Award from the American Public Health Association, which honors a statistician who has made outstanding contributions to health statistics.

Brian Caffo

Brian Caffo is a Professor in the Department of Biostatistics at the Johns Hopkins Bloomberg School of Public Health. Along with Roger Peng and Jeff Leek, Dr. Caffo created the Data Science Specialization on Coursera. Dr. Caffo is leading expert in statistics and biostatistics and is the recipient of the PECASE award, the highest honor given by the US Government for early career scientists and engineers.


Sean Kross

Sean Kross is a software developer in the department of Biostatistics at the Johns Hopkins Bloomberg School of Public Health. Sean’s professional interests range between metagenomics, cybersecurity, and human-computer interaction. He is also the lead developer of Swirl, a software package designed to teach programming, statistics, and data science in an authentic programming environment. Sean is the coauthor of the books Mastering Software Development in R and Developing Data Products, and the author of an upcoming book called The Unix Workbench.

Jessica Crowell

Jessica is a videographer and editor at Johns Hopkins Bloomberg School of Public Health, Department of Biostatistics. After graduating with a BFA in Video and Film from MICA (Maryland Institute College of Art), she joined the department in 2015. Since then, Jessica has shot and edited over three hundred MOOCs, a short documentary of the Biostat Dept. and its history, and has also created many other promo videos (sometimes involving puppets or animation). She is driven to maintain a collaborative balance between creativity and academic integrity, working closely with the members of Data Science Lab and members of the faculty to support them in all their endeavors.

Ira Gooding

Ira Gooding is Manager of the Open Education Lab in the Center for Teaching and Learning at the Johns Hopkins Bloomberg School of Public Health. He has contributed to the development of more than 50 massive open online courses and specializations, including the Data Science, Executive Data Science, Genomic Data Science Specializations. Ira is also Provost’s Fellow for Digital Initiatives.

Mike Orzechowski

As a Program Coordinator/Open Education Developer, I construct and maintain Massive Open Online Courses (such as those on Coursera, OCW, etc.) for JHSPH and some for the School of Medicine, and other departments. This includes the courses in Psychological First Aid, Introduction to Cancer Biology, Systematic Review and Data Analysis, etc., as well as Course Specializations such as the Data Science Specialization, Genomic Data Science Specialization, etc. on Coursera. This construction and maintenance includes using editing software (Captivate, Camtasia, etc.) to edit the video and audio of lectures for publication, creating syllabi out of given content, fixing errors and glitches in the active courses, and overseeing that the courses are complete and appropriate for the platform.