You will need to open a Roam Research account. This can be done at www.roamresearch.com. There are several subscription options including a 30 day free trial and a Roam Scholars Program for scholars lacking financial stability.
Anne-Laure Le Cunff – A beginner’s guide to Roam Research
A simple 5-step guide to getting started in Roam
Conor White-Sullivan – The Canonical Roam Demo
Conor, the founder of Roam, takes a user through some of Roam’s main features. Watching this video was important for me in finally understanding some of the things that Roam could achieve.