1 – 'Touch-screen' : stitched RGB pixels on a tablet screen.
2 – Print-book: stitched 4-colour printing process.
3 – Screen-book: stitched TV signal bars. Screen meets paper and colour escapes the printed page.
4 – GIF-book: stitched digital image (7-colour GIF). This book does not contain images, here an image contains a book.