For free?
In video format (find his first videos where he has DDK lectures):
In forum text/images (has already been mentioned):
In Android:
In book format (Life and death + relative shape explanations in Chapter 6):
For free?
In video format (find his first videos where he has DDK lectures):
In forum text/images (has already been mentioned):
In Android:
In book format (Life and death + relative shape explanations in Chapter 6):