Chiefs of staff from around the world have shared their experiences of working with the most powerful leaders, offering a glimpse into their lives.
These individuals, often the second-most powerful people in the room, are rarely heard of by voters, but play a crucial role in shaping big political decisions.
"The (chief of staff) role has this professional intimacy, it's such a unique role and the biggest takeaway was that at the end of the day it does come back to friendship,"
According to Phoebe Saintilan-Stocks, author of The Right Hand, trust and loyalty are essential components of the chief of staff role, and once these are lost, the working relationship cannot continue.
Author's summary: Chiefs of staff reveal their experiences working with powerful leaders.