What is a Cafe Cruiser motorcycle?

Could you please elaborate on what exactly a Cafe Cruiser motorcycle is? Is it a specific type of motorcycle with distinct characteristics, or is it a term that encompasses a variety of styles? Are there any notable features that set Cafe Cruiser motorcycles apart from other types of bikes? I'm curious to know more about the history and evolution of this type of motorcycle, as well as its popularity and appeal among riders. Thank you in advance for your insights.