Seeger. A name to strike sparks with almost anyone, whether or not they have an interest in folk music, a catch-all term about which Peggy Seeger and her creative and life partner Ewan MacColl (they didn’t actually marry until a decade before his death) had strong feelings. Pete Seeger, Peggy’s half-brother and the legendary composer of “If I Had a Hammer” and “Where Have All the Flowers Gone?”, was more tolerant.

Harry Potter has a track record of trickery. He miraculously persuaded a generation of screen addicts to get stuck into hardbacks. Lately he has been luring multiplex junkies into the theatre to see live wizards on stage. Can Harry Potter make it a hat trick by coaxing his fans into a gallery? Harry Potter: A History of Magic is at the British Library.

We are now firmly in the post-truth era as defined by Oxford Dictionaries: "adjective - relating to or denoting circumstances in which objective facts are less influential in shaping public opinion than appeals to emotion and personal belief." Never have we been more in need of honest discourse, but dishonesty – or what Alan Clark memorably described as “being economical with the actualité” – has somehow become the order of the day.

A long time ago when I was very young, a voice hidden deep within me whispered, "Don’t take anything for granted. Go and see for yourself." This little nagging murmur has led me to so many journeys, so many explorations, trying to live together multiple lives, from the sublime to the ridiculous. Always the need has been to stay in the concrete, the practical, the everyday, so as to find hints of the invisible through the visible.

I was 10 in 1967 though I remember much about the year, indeed about the era, not least the release of Sgt Pepper and the first live global satellite broadcast, when the Beatles sang “All You Need is Love”, and all the great transatlantic hits, including of course Scott Mackenzie’s “San Francisco (Be Sure to Wear Some Flowers in Your Hair)”.

It’s 25 years this year since Donna Leon introduced us to Commissario Guido Brunetti, a man who in his way has done as much for Venice as Byron and Ruskin or, in our own time, Francesco da Mosto, like Brunetti a glamorous figure absorbed by the history and culture, not to mention the cuisine, of La Serenissima.

The jacket designs of Jo Nesbø’s Harry Hole thrillers don’t muck about. The novelist’s name with its anglicised spelling is branded in eye-catching upper-case yellow, accompanied by the latest sales figures. "Over five million copies sold worldwide" – that was several crime novels ago. It has since gone up in vertical increments: nine million, 18 million, 23 million, 30 million.

“What’s it like to be a child prodigy?” is a question asked by violinist Min Kym several times in the course of this fascinating, agonising memoir. There’s no simple answer, but this description rings true: “There’s that peculiar sensation of feeling completely normal within yourself, but acutely aware that you are different.”

Anyone who's followed Yrsa's earlier novels, many of them featuring down-to-earth attorney Thora Gudmundsdóttir as heroine, will value her superb evocation of very distinct and haunting parts of Iceland - the Snæfellsnes Peninsula, Heimaey island, the Western Fjords. Sense of place is relatively unimportant in The Legacy, 2014 start to a new series now translated by Victoria Cribb.