CopyAsPlaintextButton.cdf
The notebook contains code that places a button in a DockedCell that copies whatever is selected as plain text.

ExerciseGenerationWithButton.nb | ExerciseGenerationWithButtonNoCode.cdf
The notebook contains code that shows how to use the Button command to generate exercises, and the CDF contains a sanitized version without code but it still interactive.

TypesettingAndTextSideBySide.nb
This notebook contains two different examples of how to put blocks of typesetting and text side by side.

InputFieldIntersectionExample.nb
This notebook shows how to create an application with InputFields that graph the functions and display their intersection points.

CreatingANewCellStyle.nb
This notebook shows how to create a new cell style.

DockedCellWithLinks.nb
This notebook shows how to create a DockedCell whose contents include hyperlinks to parts of the notebook.

SnowyStylesheet.nb
This notebook contains a snowflake-themed stylesheet.

StylesheetsTutorial.nb
This notebook contains a very rudimentary introduction to stylesheets in Mathematica.

CreatingASlideshowWithADockedCell.nb
This notebook contains some sample code to add a DockedCell to a notebook; this can be used to brand your slide show with a logo.

BigMathCellExample.nb
This notebook's stylesheet contains a definition for a cell style, BigMathCell, that has a large font setting. This cell style can be used to format mathematical typesetting so that it stands out from surrounding text.

AntialiasingAndPerformanceGoal.nb
This notebook shows how to change Mathematica's default settings to improve graphics quality, such as antialiased graphics and smoothing graphics when Manipulate is involved.

ManipulateWithGraphics.nb
This notebook shows how to import images to use as buttons in a Manipulate.

Plot3DWithArrows.nb
This notebook contains a custom Plot3D function that simulates axes with arrowheads.

SampleSimpleQuizGenerator.nb
This notebook contains some examples of using random number generation to create quizzes for topics such as addition of simple fractions.