Book selecting - concept animation transition

Hi, dribbblers, last time I said that I would try more color palette in my future design. So here's yellow color Series, I did not dare to try this color before, cause in my impression that it's beyond my control. But everything is difficult at the beginning, and I have to take the first step.

I defined the sliding operations by sliding distance, so you can see when swiping both right it had two states. Sliding distance is less than 50% screen width equals book swiping (next, previous). Sliding distance is greater than 50% equals book details displaying.

Based on books selecting, a concept ux transition with small details that are not easy to find, so could you point out where it is?

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