How does the communication between a browser and a web server take place?

Question

Can anyone explain how the communication takes place between the browser and web server? I want to learn how

• GET, POST verbs (among others)
• cookies

Answer 1

There is a commercial product with an interesting logo which lets you see all kind of traffic between server and client named charles.

Another open source tools include: Live HttpHeaders, Wireshark or Firebug.