# Ryan Singer author of _Shape Up📚 (2019, Basecamp)_ founder of [[37signals]] (2003) 17 years at _Basecamp_ - https://feltpresence.com/ - https://www.ryansinger.co - https://twitter.com/rjs - https://www.youtube.com/@ryansinger2716 - https://world.hey.com/rjs In the _Shape Up_ book: [4.6-appendix-07 "About the author"](https://basecamp.com/shapeup/4.6-appendix-07)