# Jason Crawford **URL:** --- Jason Crawford is the author of the blog [The Roots of Progress](https://rootsofprogress.org/). He is the Former co-founder \& CEO of [Fieldbook](https://angel.co/fieldbook), a hybrid spreadsheet-database. Previously he was an engineering manager at Flexport, Amazon and Groupon, and was at a few other startups as co-founder or early employee.