Object Oriented Design by Derek Banas

> I had to share this rare find with you guys. It’s a FREE video series that explains the process for object oriented analysis and design, (OOAD). Designing classes in an object oriented system is one of the hardest part of software development. But Derek makes it look easy, even though his code isn’t nicest to read.

Lynda.com offers a course over OOAD but it requires a monthly subscription and is MUCH longer:
https://www.lynda.com/Java-tutorials/Welcome/96949/106053-4.html