The role of a Quality Engineer at Agile teams
Loraine Garutti wrote a wonderful summary of the tester's role in Agile, based on the timeless Agile Testing book. I have nothing to add!
James Thomas did a great job listing out a lot of powerful quotes from the Systemantics: How Systems Work and Especially How They Fail book.
The Art of Application Performance Testing
If you're interested in learning about performance testing, Klaudia Dziubek shared a nice overview of the book The Art of Application Performance Testing
Mike Harris wrote a brief overview of the classic Quality is Free book that can help you understand what it's about.
BDD Automation: from executable specifications to automated tests
Here's a meaty excerpt of John Ferguson Smart's book called BDD in Action which demonstrates the best way to implement BDD with Cucumber in Java test automation.
Software Development Engineer in Test — How Google Tests Software?
Adam Piskorek shares what insights he learned about test automation, shift-left and SDET role in two of Google's books on software testing.
33 Routines to make you a better tester
Klaudia Dziubek wrote a brief but interesting overview of the recently-released The 2 Minute Tester: 33 Routines to make you a better tester book.
If you haven't read the Agile Testing book, you may want to check out Fatma Akın's article that explains the key concepts and principles.
Read: A Practical Guide to Testing in DevOps
Kristine Casas highlights some useful and interesting topics found in the book A Practical Guide to Testing in DevOps which might inspire you to check it out.
Choosing Tests for Infrastructure
Here's an interesting excerpt from Rosemary Wang's book titled Infrastructure as Code, Patterns and Practices that describes using a test pyramid for infrastructure testing.