This is a fantastic history of Africa. However, there are some things to bear in mind before buying / reading that are worth highlighting:
Nugent himself admits that the book is probably better used in small doses, for dipping in and out when information on a particular issue is wanted. To read from cover to cover is quite a heavy effort; I only did this as it was a recommended summary text for a course on Postcolonial Africa. The density of the information makes this quite dry and in certain instances, he assumes a certain level of knowledge - in other words extending a narrative, rather than building it up from rock bottom.
In saying that, throughout the course of the book, he charts the histories of a vast array of different African countries from the colonial period, through the struggle of independence, to the present day (2003-ish). As well as documenting the individual stories of countries, he analyses by theme as well so the reader can approach the text looking for country-specific information, or concept-specific content (i.e. liberal democracy, socialism, military rule and so on).
As with many histories of Africa, it is quite date and name heavy; ironically, one of the chapters talks of the 'invasion of the acronyms'; as much as this can be applied to NGOs, SAPs and the like, it could also be applied to African history texts. This book does not change that theme. In a couple of instances, pages are so covered in abbreviated party names that it is very easy to lose the thread of what is going on, especially when there are a few clear misprints. At a very picky level, there are quite a few niggly printing errors but not so many as to become completely annoying.
All in all, it is a thoroughly comprehensive and engaging, if challenging, text. An excellent resource for study and consolidating / expanding learning; it is probably not a good text if the reader seeks a general, light overview or introduction to African history. There is also a new edition due for release in June 2012, which will no doubt include useful updates (at one point, he talks of South Sudanese succession seeming more distant than ever (!)).