1. Introduction with the obvious debunking
    of the use of 'just coordinates' in any
    scientific formula.
 2. Table of Contents.
 3. The Lorentz-Einstein transforms.   
 4. The 'just coordinates' argument.
 5. Single-system, little-purpose ambiguity.
 6. Relating two coordinate measures/systems. 
 7. Distances and moving coordinate axes.
 8. Time intervals.                          
 9. Einstein's (1905) derivations.
       10. A word about intervals.
       11. Intervals versus the Twins Paradox.
       12. Summary