How to Use ND Studies


  • Navigation button example
    The Navigation button is likely the most important button on this website. It will allow you to travel to any unit in the book. Simply click on the Navigation button, and then click on your desired destination from the drawer panel on the left side of the screen. Click the "Close" button on the top right of the drawer panel to dismiss it.
  • Next and Previous button example
    Two other essential tools for navigating this book are the previous and next arrow buttons on each textbook page. They will take you to the next page in the book, or the previous page in the book. You'll find them on the left and right edges of the page. Click on them to flip the page forward or backward.


This online book allows you to customize your reading experience. You can access your User Preferences from any page by clicking on the gear icon button in the top menu bar. Preferences will be saved to the device that you are currently using, and must be reconfigured if you visit this website on another device. Read about your customization options below.

  • Font Style — You can change the font style of the text on every page. Serif text looks more like the text you would find in a book. Sans-serif text is the style that you find most often on computers. Click on the corresponding button to set your preference.
  • Paragraph Style — You can choose how paragraphs are separated on every page. Book-style paragraphs indent the first line of text. Web-style paragraphs do not indent; instead, each paragraph is separated with an empty line. Click on the corresponding button to set your preference.
  • Text Size — You can easily increase the legibility of the text by changing the text size. Simply click on one of the four size options to adjust the text to a comfortable reading size.