Paul LenzPaul Lenz is an executive at a charitable trust which focuses on evidence-led philanthropy, particularly in sub-Saharan Africa. In his spare time he can found climbing, playing fire croquet at Burning Man or befriending cats, but rarely all at once. e is the co-author of the quiz book How Many Hippos?. Find out about his new book - and take the quiz - at www.officehostages.com. Read More Read Less