I'm Jon Jagger, a UK-based software development consultant.
I help teams improve their effectiveness at collaboratively developing software.I built cyber-dojo to promote deliberate practice for software developers.
Do you have evidence to support your instant dismissals?
If you mean did I even open the two books pictured then the answer is no. I feel books like this contribute to the idea that any learning can be short-circuited and done in a lot less time. Viz, they add yet more weight to the myth of "professional management".