I double-dog dare you to read this on the bus...

What a brilliantly devious idea. Flapart sells these alternative book covers. They're basically slip covers for books you read - to fool the people around you. Some titles include:

• The Nutritional Benifits of Nose Picking
• How to Murder a Complete Stranger and Get Away With It
• How to Cheat Your Way Through University
• Do-it-Yourself Dentistry
• Coroner by Correspondence
• How to Overcome Nymphomania (pictured)