Below you will find some resources that I have found useful in my work that I want to share with you.
Most of the material is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.
Visual Management card
Use the questions on this card to check your Visual Management System.
Please download and print with duplex(double-sided) and you get four pockets sized cards that you can always have with you.
Hakan Forss's Blog 