Unfortunately there aren't many instances of plug and play Schema markup. If reviews and recipes are your thing, there are a few WordPress plugins that may make your life easier.
But for the most part you have to understand that there are scopes, types and properties. Here's a link - scroll down beyond the More Specific types. Click the Microdata tag under Examples.
It's basically zooming in from a broad type. It's saying I'm a WebPage. Then it's saying I'm a WebPage and I have breadcrumb navigation. This particular breadcrumb pertains to books.
Okay, so this is a Webpage about Books... maybe. Let's get a little more specific. This is definitely about a book. Here's the cover image. The book is Catcher in The Rye.
Yeah? But what type of book? There are several kinds.
Well, this one is a paper back.
Oh. But who wrote it?
J.D. Salinger.
I've heard of that guy. What did people think about the book?
All of the ratings average 4 stars.
Oh yeah? How many ratings, weisenheimer?
3077, natch.
How much is it and can I get it now?
Fo sho, it's $6.99 and it's in stock.
I need to know a little more about it. I don't have a lot of free time.
No problem, it's 224 pages and written in English.
Is this a first printing?
Naw man, it was printed in May 1, 1991. Here's the ISBN number so you can check it out further.
So you can see that Schema can get pretty involved. It can also be pretty direct. It really depends upon what your application is. Hopefully that helps.