Articles

1. Algorithms for Rendering in Artistic Styles

Article by Aaron Hertzmann about styles of drawing/painting in a classical art and the programmatic approach to those styles that tries to mimic them: implement brushes, filters, hatching etc. Requires an hour or two to finish.

Books

1. Hands-On Microservices with Spring Boot and Spring Cloud

By Magnus Larsson

2. Concurrency in Go By Katherine Cox-Buday

3. AWS Certified Solutions Architect Official Study Guide

By Joe Baron, Hisham Baz, Tim Bixler, Biff Gaut, Kevin E. Kelly, Sean Senior, John Stamper

• this one is good

4. AWS Certified Solutions Architect - Associate (SAA-C02) Cert Guide

5. Pro Spring Security: Securing Spring Framework 5 and Boot 2-based Java Applications

By Carlo Scarioni, Massimo Nardone (too little, too quick, no in-dept, reads like a longer tutorial)