This one is from a book about business maths and English
Barcode from one of those "... For Dummies" books
Barcode from a book about Fermat's Last Theorem
Guess which CD
Colour code bar from a news paper. Kinda like a barcode
Modern 2D QR barcode
This ones in white
Seven Seas
Great game
Smell the code
Enjoy
Barcode from a Spanish book