title: Essentials for Design XHTML,  Level 2
author: Kelly L. Valqui
description: This series is ideal for any course that includes desktop publishing and/or web design software applications as well as web scripting languages. Courses can be found in Computer Information Systems, Computer Science, and Fine Arts Departments, as well as Continuing Education, and Journalism. The Essentials series by Prentice Hall is based on a learning-by-doing approach that encourages students to grasp application related concepts as they expand their skills through hands-on tutorials. Now a part of the Essentials series, Prentice Hall's Essentials Graphic Design titles offer a clean, easy-to-follow, full color layout with two different levels available. Instructor Resource CD-ROMs include assessments, PowerPoint presentation materials, and additional projects.
zlib_text: # Contents
  
    1. [Functional Design Patterns for Express.js](text/ch001.xhtml#functional-design-patterns-for-express.js)
      1. [Acknowledgments](text/ch002.xhtml#acknowledgments)
        1. [Technical Reviewers](text/ch002.xhtml#acknowledgments:technical-reviewers)
      2. [Introduction](text/ch003.xhtml#introduction)
        1. [Why Express?](text/ch003.xhtml#introduction:why-express)
        2. [Approach](text/ch003.xhtml#introduction:approach)
        3. [Topics](text/ch003.xhtml#introduction:topics)
        4. [Prerequisites](text/ch003.xhtml#introduction:prerequisites)
        5. [Let’s Get Started](text/ch003.xhtml#introduction:let-s-get-started)
    2. [I. Express Essentials](text/ch004.xhtml#express-essentials)
      1. [1. How Servers Talk](text/ch005.xhtml#how-servers-talk)
        1. [HTTP: The Core Abstraction of the Web](text/ch005.xhtml#how-servers-talk:http-the-core-abstraction-of-the-web)
        2. [Installing `telnet`](text/ch005.xhtml#how-servers-talk:installing-telnet)
          1. [On L