A friend of mine is about to be promoted to a very senior management position, with multiple layers of management between her and engineers.

She's asked for some reading recommendation on managing managers in a technology company (communication, setting goals/KPIs, meaningful feedback, coaching/mentorship, etc.).

"The Manager's Path" although being one of the best books I've read, is mostly focused on having the engineers being fairly near to you in the organization chart.

Do you have some good reading recommendation for building a good set of skills in senior management positions?