Alexander McCall Smith returns once again to his favourite fictitious house, set in a real street in Edinburgh. First published in 110 episodes in The Scotsman newspaper, this is vintage McCall Smith, tackling issues of trust and honesty, snobbery and hypocrisy, love and loss, but all with great lightness of touch.

Long-suffering child genius Bertie Pollock has much to contend with in the latest instalment of life at 44 Scotland Street, not least the birth of his brother Ulysses. Bertie had hoped that caring for a new baby would command all of his mother's attention, but he quickly sees that his dream of being left to his own devices is not destined to come true.

To the casual observer, the great enlightened city of Edinburgh, home of no-nonsense sermons and cream teas, might appear immune to the rollercoaster of strong emotions. But at 44 Scotland Street, as Matthew and Elspeth embark on the risky enterprise of married love, the raffish portrait painter Angus Lordie has a premonition of disaster. Soon enough Irene Pollock is shocked to learn that her small son Bertie harbours a highly unsuitable ambition; and Angus finds himself facing a large Glaswegian gangster.

Despite inhabiting a great city renowned for its impeccable restraint, the extended family of 44 Scotland Street is trembling on the brink of reckless self-indulgence. Matthew and Elspeth receive startling – and expensive – news on a visit to the Infirmary, Angus and Domenica are contemplating an Italian ménage a trois, and even Big Lou is overheard discussing cosmetic surgery.

Amateur sleuth Isabel Dalhousie is a philosopher who uses her training to solve unusual mysteries. She edits the Review of Applied Ethics, addressing such questions as "Truth telling in sexual relationships", and she also hosts The Sunday Philosophy Club at her house in Edinburgh. Behind the city's Georgian facades, its moral compasses are spinning with greed, dishonesty, and murderous intent.

Corduroy Mansions is the affectionate nickname given to a genteelly crumbling mansion block in London's vibrant Pimlico. This is the home patch of - among others - a lovelorn literary agent, possibly the first ever nasty Liberal Democrat MP and Freddie de la Hay, an urbane terrier trained to be vegetarian and respectful of feline rights.

Anthropologist Domenica MacDonald observes the lives of her neighbours and the neighbourhood in Edinburgh's New Town. Pat, a new young tenant, arrives at 44 Scotland Street to flat share with Bruce. Bruce is a surveyor with more of an eye for the ladies than a sound property. We're introduced to five-year-old Bertie, who is controlled by his pretentious and intellectual mother, Irene - he's learning the saxophone, speaks Italian, and is extremely knowledgeable about many subjects.

Detective Ulf Varg from the Department of Sensitive Crimes is often called upon to investigate unusual matters. But rarely is he asked to conduct an inquiry on behalf of his own family. Is such a thing ethical? Adding to Ulf's moral discomfort is the fact that he does not exactly see eye to eye with his younger brother Bjorn - a leading player in one of Sweden's right-wing parties, the Moderate Extremists. Still, family is family, so Ulf finds himself working to uncover the mole leaking secrets to a rival party, the Extreme Moderates. 

When writer Paul Stewart heads to the idyllic Italian town of Montalcino to finish his already late book, it seems like the perfect escape from stressful city life. Upon landing, however, things quickly take a turn for the worse when he discovers his hired car is nowhere to be found. With no record of any reservation and no other cars available, it looks like Paul is stuck at the airport. That is, until an enterprising stranger offers him an unexpected alternative.

Wayward daughters. Missing Husbands. Philandering partners. Curious conmen. If you've got a problem, and no one else can help you, then pay a visit to Precious Ramotswe, Botswana's only - and finest - female private detective. Her methods may not be conventional, and her manner not exactly Miss Marple, but she's got warmth, wit and canny intuition on her side, not to mention Mr J.L.B. Maketoni, the charming proprietor of Tlokweng Road Speedy Motors.