Are the books on the left?
No, the books are on the right of the image.
    src        edge_attr  dst
0     0  to the right of    4
1     1  to the right of   10
2     1  to the right of    6
3     1  to the right of    3
4     1  to the right of    4
5     1  to the right of    7
6     3   to the left of    1
7     4   to the left of    1
8     4   to the left of    5
9     4   to the left of    0
10    5  to the right of    4
11    5  to the right of   10
12    5  to the right of    7
13    6  to the right of    7
14    6   to the left of   10
15    6   to the left of    1
16    7               on    4
17    7   to the left of    5
18    7   to the left of    1
19    7   to the left of    6
20    7   to the left of   10
21   10  to the right of    7
22   10   to the left of    5
23   10   to the left of    1
24   10  to the right of    6