Collecting autographs is arguably a dying art, with the public often opting to snap a selfie with a VIP instead of getting their signature these days. But fans could be overlooking a potentially lucrative nest egg. The most sought-after squiggles sell for incredible amounts, particularly if they're attached to a historically important document or piece of memorabilia. We're talking millions of dollars in some cases.

Read on to discover 30 of the most expensive autographs of all time. For pre-2022 sales we've adjusted the figures for inflation to give you an idea of their value in today's money.

All dollar amounts in US dollars.