Once upon a time you struggled to use Simulink; now you can put together a sensible model without much thought on the implementation. What was most helpful for mastering Simulink? Favorite books, Mathworks training, Mathwork's demos or webinars, cranking through modeling problems for work/class, a smart coworker, or...? How many years did it take before you felt comfortable using Simulink?
As a beginner, here are the resources that I have found useful in order of utility or my knowledge level:
How did you learn Simulink?
1% From Work
99% From Simulink documentation and Practice...Practice...Practice.....
What was most helpful for mastering Simulink?
The documentation provided with simulink itself is sufficient for learning it to extreme level. I have not found any good book on simulink.