Outline for the article:

 - Introduction: what is tiff, what is libtiff, Adobe's involvement
    - What is TIFF
    - What is Libtiff
    - Adobe's name
    - Why can TIFF coding be hard?
    - Focus on black and white, the principles are the same for colour

 - The easy part: writing a tiff file out
    - Making a bitmap

 - The hard part: reading a tiff file in
    - Strips, tiles, options options options