Most of these are linked from the appropriate place in the book.

• Roller coaster with tangent animation
• Cone
• Cycloid animation
• Ellipse with tangent animation
• Ellipsoids
• Helixes
• Helix with tangent animation
• Links
• Plane
• Pyramid
• Shell
• Cone with hole
• Curve with a cusp
• Sphere with a hole
• Triangular cross-sections