A group of poems is commonly referred to as a collection or an anthology. These terms are used to describe a compilation of poems, often by a single poet or multiple poets, gathered together in a single volume.
An anthology typically includes a selection of poems that share a common theme, style, or period. It can be curated by an editor who selects the works to be included. On the other hand, a collection usually refers to a set of poems by a single author, often showcasing their work over a period of time or focusing on a specific theme.
Both collections and anthologies are important in the literary world as they provide readers with a convenient way to explore a variety of poetic works. They also help preserve and promote the works of poets, making them accessible to a wider audience.