Special sections in the document

Question

I have a plan to make special sections in the document. For example:

• Good news. While you're reading a book, you'll see inset block that gives you some additional information.
• Example. While you reading a book, you can read example from the author.
• Personal story. Some personal story from the author of the book.

I don't know the right name for these blocks. Usually it's similar to something you have with bulb and some additional text in "For Dummies" series.

How can I do it in Latex?