Facing the Congo is the latest such book. In it, Jeffrey Tayler recounts his attempt to canoe the navigable length of sub-Saharan Africa's most symbolic river.

Equipped with help from one of Mobutu's henchmen and an ailing guide, Tayler finds things far from plain sailing. Negotiating corrupt officialdom, murderous peoples on the riverbanks, widespread suspicion and the dangers of the river itself, he ultimately finds his plans too demanding to be fully realised.

Tayler's prose is often evocative and his story is a compelling one. But he tends to load his descriptions with adjectives, which can over-dramatise situations. Of course this is a dramatic adventure, and Tayler tells it well, but at the end you can't help feeling that too little attention is paid to the root causes of both his troubles and the current situation in the Congo rubber fever, greed and a callous European superiority complex.