The 48 sheets include the lines: "Everyone's behind me even if I come last", "Remember it's a marathon not a race", "Wall, what wall?" and "After hundred's of miles I'm not giving up on the last 26.2". The posters were developed by TBWA\London for the annual event.
Adidas has been running a website where runners can leave their own Impossible is Nothing messages relating to the race. These have been put onto a huge wall at the marathon exhibition centre, at London's Excel Centre, which is open from April 18 to 21.
Visitors to Excel can also write directly onto the walls with their own Impossible is Nothing messages.
In addition, Adidas is running a branded double-decker bus that has been commissioned to run each day of the Exhibition, between the Adidas Sport Performance Store in London's Oxford Street and the Excel Centre.
Adidas' recent global Impossible is Nothing campaign featured stars such as David Beckham, Lionel Messi and Jonah Lomu, talking and sketching their stories about coming through adversity.
The campaign was created by 180 Amsterdam.