Young and foolish, Rough guide editor and inveterate traveler Sandham set out from Namibia across Zambia and Tanzania to Zanzibar on a 3,000-mile trek. He writes with down-to-earth glee of the personalities, hardships, pleasures and idiocy of a solo walk (sometimes in the company of a donkey or mule) through tough terrain, interweaving his adventures with commentary on history and people.  (AFR212, $25.00)