Chiefs of staff from around the world have shared their experiences of working with the most powerful people in politics.
They are often the second-most powerful individuals in the rooms where major decisions are made, yet remain largely unknown to the general public.
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, the role of a chief of staff comes down to trust, loyalty, and friendship with their boss.
Eight chiefs of staff have contributed to the book, offering a glimpse into their experiences of supporting and challenging the world's most powerful leaders.
Saintilan-Stocks notes that chiefs of staff tend to avoid the media, preferring to stay out of the news.
Author's summary: Chiefs of staff share their experiences working with powerful leaders.