Okonjo-Iweala writes spare, straightforward prose about an extraordinary undertaking: reduction of corruption in a country internationally famous for it. And that's just one of her challenges. She also has to stabilize an economy dependent on volatile oil prices; develop a persuasive argument for the cancellation of foreign debt; and keep her job.
A great deal of the book is technocratic. There are few accounts of dramatic meetings or personal confrontations; heavy on the policy choices. However -- her biggest challenge is corruption. And corruption always has a beneficiary. Nigeria's larcenous class fought hard. Okonjo-Iweala does mention the political side: seeking support from the people of Nigeria and from the elected President. And she frankly acknowledges the role of politics in supporting or hindering reform.
One of the worst problems is that previous generations of international loans went to kleptocratic rulers who simply stole much of it, leaving the current government with a very difficult debt problem and little popular support for paying off the old loans or ever borrowing any more money.
The author focuses the entire book on her experiences in Nigeria. However, a great deal of the problems and solutions are universal. If your government has borrowed money that it can't pay back -- if your public payroll is bloated by decades of sweetheart deals -- if a business person can't get a loan, or can't get the permits they need, without political juice -- then you've got the same problems. May your President and your Finance Minister read this book, and may you hold them accountable for honest government.