The NHS has launched a Rosh Hashanah campaign to encourage community members to give blood.
Large posters with the Shana Tova greeting have been hung in prominent sites in Edgware, Mill Hill, Stanmore, Golders Green and Elstree. They also inform people of the upcoming blood donor sessions.
The campaign is supported by the United Synagogue's Chesed department.
An NHS Blood and Transplant representative said: "We find the banners prompt people to donate and remind them to keep their appointments."