After National Blood Week, it’s great to see an emphasis on giving blood continue. In case you missed it – during National Blood Week (June 8th – 14th), brands and retailers showed their support by removing the letters that make up the main blood groups – A, O and B – from their logos and mastheads. Alongside this, the hashtag #MissingType was created to further drive awareness. Brands could show their support via this hashtag and tweet photographs of their logos. Others took to removing the letters from their Twitter name too. The week-long campaign was a massive success and delivered…