GL on that
How to read Understanding Chess Move by Move?
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Nov 23, 2008
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#4
Yep. And to add further analysis to Chessroshi's comment, after left to right, go down a line. 
what happens when you reach the end of the page?
haha...seriously should I copy down the moves?
If you learn things that way I guess, but it will be slow going.
I would just set up a board and pieces and play through the games on the board while reading Nunn's comments from the games.
I personally like to copy down the moves and annotations.