It's definitely mostly historical but it is an excellent read anyway if you're interested in what kind of problems faced game developers at the time and to what

It's definitely mostly historical but it is an excellent read anyway if you're interested in what kind of problems faced game developers at the time and to what lengths they had to go to solve it. The chapters about getting Quake rendering to a decent level along with John Carmack are great. So, strongly recommended if you're interested in the technology during that era, not so much if you're expecting a lot of technical information that is directly applicable to current day game/graphics development.