Regarding the difference between the sentences above:
I'm confused about the commas. Does the bit ", die lesen," imply that women in general read, and that they are dangerous? Or does the title imply "Those women who read are dangerous."
The version with commas is the title of a bestseller by Stefan Bollmann. The complete title is "Frauen, die lesen, sind gefährlich. Lesende Frauen in Malerei und Fotografie".
The English title became: "Women Who Read Are Dangerous" not "Women, Who Read, Are Dangerous"