A woman with a Japanese style full back body tattoo at the 12th London International Tattoo Convention, which opened today in Tobacco Dock, east London on September 23, 2016. The show features over 400 of the world's finest, most prestigious and elite tattoo artists as well as a showcasing alternative culture in the form of piercing, burlesque and the Miss Pin Up UK competition. Around 20,000 people will attend over the weekend. (Photo by Michael Preston/Alamy Live News)





Bottles of ink at a tattoo artist’s booth at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Yui Mok/PA Wire)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A woman is tattooed at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





Tattoo enthusiast Araceli Forever poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





Tattoo enthusiast Lasse Risvik poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A woman is tattooed at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A woman is tattooed at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A man is tattooed at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A woman is tattooed at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A woman is tattooed at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





Body modification artist Shiva 108 shows his full-face tattoo at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Yui Mok/PA Wire)





A tattooed woman at the opening day of the 12th London International Tattoo Convention, which opened today in Tobacco Dock, east London on September 23, 2016. (Photo by Michael Preston/Alamy Live News)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Steve Parkins/Rex Features/Shutterstock)





Souvenirs from the show: convention visitors take advantage of the on-site artists to get new tattoos at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Linda Nylind/The Guardian)





A tattooist at work at the the 12th London International Tattoo Convention, which opened today in Tobacco Dock, east London on September 23, 2016. (Photo by Michael Preston/Alamy Live News)





A tattooed woman at the opening day of the 12th London International Tattoo Convention, which opened today in Tobacco Dock, east London on September 23, 2016. (Photo by Michael Preston/Alamy Live News)





Nautical but nice: a tattoo artist inks a ship on a sea of bare skin at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Yui Mok/PA Wire)





A woman having a tattoo done during the London International Tattoo Convention at Tobacco Dock in London, Britain September 23, 2016. (Photo by Yui Mok/PA Wire)





Meagan (left) and Seoyul, both from South Korea, attending the London International Tattoo Convention at Tobacco Dock in London on September 23, 2016. (Photo by Yui Mok/PA Wire)





A client has a tattoo drawn on her arm at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Linda Nylind/The Guardian)





A tattoo enthusiast poses at the International London Tattoo Convention in London, Britain September 23, 2016. (Photo by Neil Hall/Reuters)





A woman with a Japanese style full back body tattoo at the 12th London International Tattoo Convention, which opened today in Tobacco Dock, east London on September 23, 2016. (Photo by Michael Preston/Alamy Live News)