Los Techies Motivational posters on the SOLID principals

Motivational posters by Los Techies about Uncle Bob Martain's SOLID principals.

if you have not already heard ...
SOLID Principles with Uncle Bob - Robert C. Martin
Uncle Bob Martin: SOLID, this time with feeling.
stack overflow Podcast #41

SOLID

Software development is not a Jenga game.

Single Responsibility Principle

Just because you can, doesn’t mean you should.

Open Closed Principle

Open chest surgery is not needed when putting on a coat.

Liskov Substitution Principle

If it looks like a duck, quacks like a duck, but needs batteries – you probably have the wrong abstraction

Interface Segregation Principle

You want me to plug this in, where?

Dependency Inversion Principle

Would you solder a lamp directly to the electrical wiring in a wall?