1) Select recipes under your EQII menu. From here select the edit button at the top where it says unfiltered. If you go down to the bottom you can view what recipe books you have scribed already.
2) When you buy your first few recipe books from the merchant, leave your buy/sell window open. Let's say you buy book 4, but already have scribed book 4, you can sell it back for the same price as long as you haven't closed the buy/sell window. I have tried this and it works. I am not sure if it is a bug in the game or not, but remember it because 1s 20c is a lot of loot for new players!
I hope this helps!
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