How Rare Is Your Blood Type? : r/coolguides

Cool guide — Blood Type Compatibility ©Stanford Blood Center : r/coolguides

Most Common Blood Type By Country : r/MapPorn

Imgur: The magic of the Internet

A cool guide : r/coolguides

Visualizing blood type antigens (crosspost from r/coolguides) : r/Mcat

A cool guide about type of diamonds : r/coolguides

Types of blood stain patterns : r/coolguides

Infographic: What's Your Blood Type?

Rarest blood type: Chart and compatibility

Blood Type Activity: Type Your Own Blood and Compare with Classmates

Rare blood types - NHS Blood Donation