Where to go next
A short
shelf
Everything on this site is a summary of someone else's work. These are the places to read it properly.
Books
Stone Spaces
Peter T. Johnstone
Cambridge University Press, 1982. The book that gave the subject a shared language. Still the place most people start.
Frames and Locales: Topology without Points
Jorge Picado & Aleš Pultr
Birkhäuser, 2012. The modern reference, written as a bridge from Stone Spaces to the present day.
The Real Numbers in Pointfree Topology
Bernhard Banaschewski
Textos de Matemática, Coimbra, 1997; revised edition from Springer in the Coimbra Mathematical Texts series, with a career essay by Karl Heinrich Hofmann.
Essays & sources
The point of pointless topology
Peter T. Johnstone
Bulletin of the AMS, 1983. The best short argument for why any of this is worth doing, and still the most quoted.
Notes on Point-Free Topology
Jorge Picado & Aleš Pultr
A compact, friendly overview of the basic ideas and the motivation behind them.
Bernhard Banaschewski, 1926–2022
McMaster University
The department's memorial page, and the source for most of the biographical detail on this site.