Are the books in the top part or in the bottom of the picture?
The books are in the bottom of the image.
    src        edge_attr  dst
0     0  to the right of   14
1     0  to the right of   13
2     0  to the right of    8
3     0  to the right of   11
4     1  to the right of   12
..  ...              ...  ...
59   19   to the left of    5
60   19   to the left of   14
61   20  to the right of   18
62   20  to the right of    2
63   20  to the right of   13

[64 rows x 3 columns]