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BLOOD: Today’s opportunities to donate blood are at Conway Hall, The Hop Exchange on Southwark Street, O2 Centre on Finchley Road, The Ecology Pavilion in Mile End and Battersea Arts Centre. Free, see site for terms and conditions
PRINCESS MYSTERY: Lucinda Hawksley is at Kensington Central Library talking about her biography of Princess Louise. £5/£3, prebook, 6.30pm
GEEKY FILM: Historian of Biology and film-buff Professor Joe Cain introduces the 1951 film When Worlds Collide – a film about a group of people who travel to a newly-discovered planet to avoid the human species being wiped out by a giant star – at the Grant Museum. Free, just turn up, 6.30-9pm
CRIME: Crime writer Peter May is at Waterstones Piccadilly talking about his new novel Entry Island. £5/£3, prebook, 6.30pm
TWINKLE TOES: If you feel like getting a little bounce in your step this unassuming Tuesday then you can try out Morris Dancing (£5/£4, just turn up, 6.30pm) or Lancashire Clog Dancing (£4/£3, just turn up, 6.45pm) at Cecil Sharp House.
I HAVE A DREAM: Malika Booker hosts Architects of Our Republic at Woolwich Centre Library, with films commissioned to mark the 50th anniversary of Martin Luther King Jr’s I Have A Dream speech and a guest performance from Rachel Long. Free, prebook, 7pm
GIGS: Today’s music tips (we have a selection of them this week), as recommended by our friends at LondonGigGuide, are singer songwriter Dean James at Troubadour in Earl’s Court (£6, prebook, 7pm) and Munich band Claire at Madame JoJo's in Soho (£6, prebook, 8pm)
COMEDY: There’s more sketch comedy-in-progress from The Jest, slimmed down from massive sketch troupe Simply the Jest, at Hen and Chickens. £9/£8, just turn up, 7.30pm
MORE COMEDY: Three stand up comedians preview their work in progress shows for free at the Round Table Pub in Leicester Square: Ria Lina, Jason Patterson and Inder Manocha. Free, just turn up, 8.30-10.40pm
A BIT MORE COMEDY: Comedians try out new stuff and political jokes at Lolitics, where Chris Coltrane comperes, heckling is banned and no geese are allowed. Acts include Tiernan Doueb and Nat Lurtseema upstairs at the Black Heart in Camden. £3 on the door, 8.30pm
Good Cause of the Day
London Connection Puzzle
A new puzzle starts today, set by last week's winner, Sarah Esposito. Your first clue is 'General Charles George Gordon'. Don't email in just yet, but have a think about possible themes and be ready to enter when we reveal the next clue tomorrow.
From the Archive
A couple of Londony art offerings from the archive today. Last year we shared some reader-submitted drawings and etchings of our beloved underground, and the year before it was art inspired by famous London pub signs.
This week's theme is 'weird and wonderful sculptures of London'. Today's entry is the near-infinite collection of statuary at Stables Market, Camden Town, of which the fellow below is a particularly confounding example. They're everywhere, these metal misters — shoeing horses, hammering on anvils, or puckering for a big old sloppy horse kiss. Their equine companions are even more numerous — like refugees from some failed ungulate theme park. The market has literally shelves of the things. This bountiful gathering of ironmongery is precisely why Camden Town is way cooler than Shoreditch.
Previously: the most delightful sculpture in London.