In my others stories on problem solving and how, to create innovations I introduced many, skills to readers. Here are another set of skills-how to solve external and internal problems. That is, the 1st, I classify a problem by asking: what type of problem is it? There are 2 types of problems: external and internal. External problems (outside problems) are beyond my control. Internal problems (inside problems) are under my control. To visualize how and when to use this set of skills, in my story, as usually, I gave some real life examples of problems that readers are familiar and could relate to such problems

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