Books
The Complete Manual of Typographyby James FeliciThe Elements of Typographic Styleby Robert BringhurstThe Anatomy of Typeby Stephen Coles
Online
The Elements of Typographic Style Applied to the Webby Richard Rutter,- Matej Latin has some articles on web typography from his book that are insightful
- Youtube videos by The Futur
- Butterick’s
Practical Typography - https://www.rightreading.com/typehead/typehead.htm
People
- Jan Tschichold.
- Matthew Butterick.
- Massimo Vignelli.
- Josef Müller-Brockmann.
- Emil Ruder.
- Mark Argetsinger.
- Natsumi Nishizumi