THE KALAHARI TYPING SCHOOL FOR MEN

The fourth appearance of Precious Ramotswe, protagonist of The No. 1 Ladies' Detective Agency and two sequels, is once again a charming account of the everyday challenges facing a female private detective in Botswana. In his usual unassuming style, McCall Smith takes up Ramotswe's story soon after the events described in Tears of the Giraffe. Precious and her fiancé, Mr. J.L.B. Matekoni, still have not set a wedding date, but they continue to nurture the sibling orphans in their care, as well as the entrepreneurial ambitions of Precious's assistant, Mma Makutsi, who sets out to open a typing school for men. Along the way, Ramotswe handles a few cases and negotiates the arrival of a rival detective in Gaborone. The competition, a sexist detective who boasts of New York City street smarts, proves a delicious foil to his distaff counterpart. A moral component enters the story in the person of a successful engineer who wishes to atone for his past sins. He enlists Ramotswe to help him find the woman he has wronged, and this case comes to a satisfying yet hardly sentimental conclusion. But the real appeal of this slender novel is Ramotswe's solid common sense, a proficient blend of folk wisdom, experience and simple intelligence. She is a bit of a throwback to the days of courtesy and manners, and casts disapproving glances at the apprentices in her fiancé's auto shop who obsess about girls instead of garage protocol. A dose of easy humor laces the pages, as McCall Smith throws in wry observations, effortlessly commenting on the vagaries his protagonist encounters as she negotiates Botswana bureaucracy. This is another graceful entry in a pleasingly modest and wise series. (Apr. 29)