How do I customize the backend of wordpress for my clients

Hi Guys how are you?

Most of my clients are local small businesses and they don't know very much about wordpress.

How do I customize the backend of wordpress for my clients?

Is there a way to limit the backend so that they only see some things not all..

For Example I would like to only show the Pages and Posts menus, only the "Menus" menu of Appearance and some menus of plugins.

Do you have a plugin that can help accomplish this ?

Thanks for your help..