Metadata is the information or words used to describe a creative work online. Every image, document video or audio recording needs metadata to help group and categorise them. This helps people find your work using search terms but more importantly, it will communicate valuable meaning to those reading about your item now and in the future.
WHO | WHAT | WHEN | WHERE
Title: write what here (keep it short and relevant)
Description: write about who, what, when, where, and why the item is interesting.
Example
Title: Post Card Edwardian shops Aberystwyth 1910
Description: Post Card showing Shopkeepers and passers-by in front of Edwardian shops on the corner of Terrace Road and Alexandra Road, opposite the railway station in Aberystwyth in 1910 [Ceredigion Cards Series No.7].