Awesome List of resources on Agile Software Development.
10 Common Scrum Mistakes and How to Avoid Them - by Dwight Kingdon
16 Stand-up Anti-Patterns Threatening Your Transition to Scrum - by Stefan Wolpers
28 Product Backlog and Refinement Anti-Patterns - by Stefan Wolpers
Dark Scrum - by Ron Jeffries
Product Owner Anti-Patterns — 31 Ways to Improve as a PO - by Stefan Wolpers
Scrum: 19 Sprint Planning Anti-Patterns - by Stefan Wolpers
Zombie Scrum - Symptoms, Causes and Treatment - by Barry Overeem