Because they are free
I was lucky that everything I learned about Lean, Kaizen, or production optimization started in a Japanese company. There, under the supervision of Japanese staff and during training in Japan, I learned how to approach the Continuous Improvement process. Over time, I also learned about other practices in other companies.
Today I am running "Coraz Lepsza Produkcja" blog so that together with other specialists in the field of Lean Management, Production Optimization, Six Sigma, I share my knowledge and inspire people to Continuous Improvement.
And if you feel that you would like to share your knowledge and experience - please do not hesitate to contact me