For a better work&business

Good to acquire if you'd too stupid to manage money all the time.

Why not, basically?

Well, I'm not acquainted with PRINCE2, but learning the basics would be a good deal.

Hopefully, kanban is not only about placing stickets into right places, but also on adopting brand different culture of trust and collaboration.

One of the most popular approaches ever, with focus on continuous analysis and changes. Must-understand stuff.