These articles are meant to give an idea of what it's like to work in quant, as well as some fun ones from legends in the field.
- Ed Thorp: Having the Edge on the Market: Ed Thorp is an absolute god, this is very worth reading
- Hedge Fund Market Wizards by Jack D. Schwager: Great book about interviews with hedge fund managers
- What are the different firms out there? by WallStreetQuants: Good overview of the type of firms and what they do