Book order at Amazon

I ordered books at Amazon in the very midnight.

Only after two days they were delivered in the morning.

The books I bought were good.
Especially, one includes lots of illustration and is very easy to understand.

Only one thing I feel difficult is that the book tells it needs 8 weeks to prepare.

I have only 2 weeks.

Meanwhile, I have TOO many works to do other than the conference preparation!

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