Resources to make card games
General Game Design:
The Art of Game Design: A Book of Lenses, Second Edition - For general game design. Very complete and practical.
Uncertainty in Games (Playful Thinking) - Describes types of uncertainty. Not super practical, but useful.
Playtesting by Adam in Wales - To make better playtesting
GDC Designing Games for Game Designers
Think like a game designer Podcast
Card Games:
10 Minute Board Game Design Blueprint
Pillars of Design (for boardgames)
Tu juego de mesa de 0 a 100 (MJW18. Charlitas Deluxe. Lex Ludi.)
Creating Resonance with Thematic Tabletop Game Design (GDC)
How to design a DECK BUILDING board game
How to Choose the Best Typographic System for Your Global Game
Board Game Design Day: Cardboard Interfaces: UX for Board Games (GDC)