adding an block

I don’t know exactly the terms to use for what I want to do but if someone knows please help me.

I want to add a picture of the cover of my book linked to a page about it. I may wish to place some sales copy or caption under the picture of the cover.

Is there a plugin for this type of thing. If so where do I get it.

I am new to this type of thing so I appreciate your help.

Thank you.

Chuck