Is it worth it? A rare trading card owned by Logan Paul has sold for a world-record sum. But some people believe it to have no real value at all.
YouTuber sells £12m Pokemon card
Card shark: After a record-breaking auction, YouTuber Logan Paul has sold his "virtually perfect" Pikachu Illustrator card for a staggering £12m. Glossary
Venture Capitalist - An investor or firm that provides capital to early-stage, or startup companies in exchange for equity.
WWE - WWE (World Wrestling Entertainment) is the world's largest professional wrestling promotion company.
Pokemon - A Japanese media franchise created in 1996. Pokemon, short for "pocket monsters", are small creatures.
Holy grail - Something that is eagerly sought after. The real holy grail was the cup that Jesus used at the Last Supper, for which Christians searched fruitlessly for centuries.
Declaration of Independence - The Declaration of Independence of 4 July, 1776 was an official act taken by all 13 American colonies in declaring independence from British rule.
Neuroscientist - Neuroscience is the study of the brain and nervous system. There is a lot of overlap between neuroscience and psychology, but neuroscientists tend to focus more on the way that nerves function.
Memorabilia - Objects collected due to their association with a person, time or event.