- Drupal 8 Entity API cheat sheet by Metal Toad
- Drupal 8 Entity Cheat Sheet.pdf by wizzlern
- The Drupal 8 configuration schema cheat sheet by Gabor Hojtsy
- Drupal 8 Cache API examples cheat sheet by Mike Crittenden
- Drupal 8 Theming.pdf by wizzlern
- Twig Cheat Sheet on Codepen
- Per template variables
- Query on Drupal 8 with EntityQuery by drupalsun.com
- Drupal 8 API: database abstraction layer by J-P Stacey
- Make a SQL query on multiple tables with Drupal 8 by ?
- Database Abstraction Layer examples on drupal.stackexchange.com by Kevin
- Drupal 7 to Drupal 8 by Nuvole