We know: Christmas is a week away.  Have you done your Christmas shopping?  No, I didn’t think so; neither have we.  Fortunately, it’s not biting cold outside so maybe it won’t be too deliriously frustrating to tramp through the West End on these final shopping days.  Hey, we might even have time to take in a show.

Jena Düsseldorf is the new show by German artist Sabine Moritz; it’s currently on display at Art@GoldenSquare, a beautifully expansive dipped ground floor space just off the southwestern end of the square itself, and is a lovely diversion as you make your way between Soho and Regent Street.

Moritz was born in the former East Germany, in a small town called Jena.  From 1981 she studied art in West Germany, in Düsseldorf.  This exhibition comprises a series of works (in pencil, crayon, charcoal drawing, watercolour, acrylic and oil paint) were made in the years following the reunification of the country and are composed of Moritz’s memories of growing up under Soviet occupation and Communist rule.

Deliberately naïf and rich in expressive detail, the exhibition is as much a diary of recollections – as much an exploration of the experiences that we believe made us who we are – as it is a hazy, first-person look back at a time when the world was a very different place.

When the exhibition opened, there was much to be made Moritz’s art world champions, and unfortunately the shadow of two of contemporary art’s heavyweights hangs heavy over this show.  You’ll see who when you visit the exhibition itself, I won’t mention them here, because to do so would detract from taking the works on their own terms and grasping the singular vision that’s being presented.  At times dazzling, at times subtle, the show is well worth a moment of your time before it closes at the end of this week.

Sabine Moritz: Jena Düsseldorf is at Art@GoldenSquare until 20 December.

Redstone Press return to Portobello Road this year for the second consecutive year with their ever-delightful pop-up shop.  From now until Christmas Eve, shoppers are invited into the wonderfully idiosyncratic world of this art-meets-literature publishing house.

You’ll be able to select and pick from the full current and back Redstone Press catalogue, as well as host of literary-inspired memorabilia.  New titles include The Redstone Language Diary 2013; Mexico: Macabre, which celebrates the very finest artwork of the Day of the Dead celebrations; their best-selling Psychogames box set of personality tests, games and questionnaires, and The Redstone Inkblot tests.  Enthusiasts can also pore through the Redstone Press archive of publications.

And it’s not just books; the shop holds a great number of surprisingly unique gifts that include authentic Lucha Libre masks, shipped direct from Mexico.  Even the most cursory window shop-glance will have you hooked; from prints by J.G. Posada, to a series of alphabet postcards by designed by Sir Peter Blake, to prints from Russian children’s books of the 1930s, to a box set reissue of an Osip Mandelstam poem, to stacks of the literary newspaper Bananas.  What you’ll get here is something between an artefact, a book and artwork.  Definitely one of the most unique shopping experiences you’ll have this year.  Long live this Christmas tradition.

The Redstone Press Pop-Up Shop, 201 Portobello Road, is open until Christmas Eve.

The art and film worlds love Jonas Mekas.  It’s not hard to see why.  Mekas first arrived in New York as a refugee from his native Lithuania in 1949.  He was given a small Bolex film camera and within a few years he was writing for Village Voice and founding the magazine Film Culture, as well as the now-legendary Anthology Film Archives and the Film-Makers’ Cooperative.  He could count figures including Allen Ginsburg, Andy Warhol, Kenneth Anger and Maya Deren as his friends.  Serpentine Gallery celebrate the life of the nonagenarian with a career retrospective.

Mekas’ films are visual poems, typified in style as personal diaries.  There have been millions of words written about and by the man, none of which I’ll repeat here.  His work has been exhibited throughout the world, including at Documenta; the Venice Biennale; MoMA, New York; the Whitney Museum of American Art, New York.  Despite his advanced age, he remains a man with real warmth, humour and a zest for life that runs immanently through his films.  An auxiliary programme of events will see Mekas holding court at Serpentine Gallery with some well-known well-wishers, including Jefferson Hack and film director Mike Figgis.  In deference to the man of the moment, we shall give him the last words…

"I want to celebrate the small forms of cinema, the lyrical forms, the poem, the watercolour, etude, sketch, postcard, arabesque, bagatelle and little 8mm songs. I am standing in the middle of the information highway and laughing, because a butterfly on a little flower somewhere just fluttered its wings, and I know that the whole course of history will drastically change because of that flutter. A super-8 camera just made a little soft buzz somewhere, on New York's Lower East Side, and the world will never be the same"

Jonas Mekas is at Serpentine Gallery until 27 January 2013.