Bootstrap
Jake Spurlock
Bootstrap Site Blueprints
David Cochran & Ian Whitley
Calm Technology: Principles and Patterns for Non-Intrusive Design
Amber Case
Extending Bootstrap
Christoffer Niska
Go Design Patterns
Mario Castro Contreras
Jump Start Bootstrap: Get Up to Speed With Bootstrap in a Weekend
Syed Fazle Rahman
Learning Bootstrap
Aravind Shenoy & Ulrich Sossou
Learning Drupal 8
Nick Abbott & Richard Jones
Mastering Python Design Patterns
Sakis Kasampalis
Mastering Responsive Web Design
Ricardo Zea
Practical Responsive Typography
Dario Calonaci
Practical Web Development
Paul Wellens
Twitter Bootstrap Web Development
David Cochran
Xamarin Cross-Platform Development Cookbook
George Taskos