Signed memorabilia refers to items that have been autographed by a famous person, such as athletes, musicians, or actors. These items can include photographs, jerseys, instruments, or posters, and they often hold significant value for collectors and fans. The signature adds a personal touch and authenticity, making the item more desirable. Collectors often seek signed memorabilia for its sentimental value and potential investment. The worth of these items can vary based on factors like the celebrity's popularity, the item's condition, and the rarity of the signature. Authenticity is crucial, so many collectors prefer items that come with a certificate of authenticity from reputable sources.