It doesn't

First guide was useful, second one got me dizzy

White for tutorial
yellow for descriptions
pink for side notes

There are some problems with English tense and grammar but his English is 10 times better than my Polish!

This is great, much better than anything in the manual or in the tutorials. But really, a slide with pink fonts on a pink background? And massive issues with tense/concordance, but it is the internet :P

I don't look how it work excacly. I use that to speculate, forcing world to build sth, or to build cheaper railroads/forts/ports.

Can you tell me how the minimum quatities for automatically traded goods are determined?

It seems to me as if they're way too low.

It would seem that Canned Goods for instance should be AT LEAST one's daily consumption plus 10 units. That way there will always be enough in the stockpile to build a military unit.

GREAT guide! Best I've seen on Trade.