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7.12.2.Negative List Indices
7.12.3.Accessing a List
7.12.4.Specific items
7.12.5.use negative indices to access the list from the end rather than from the beginning.
7.12.6.When you use a negative index, Python counts from the right
7.12.7.If a function call returns a sequence, you can index it directly
7.12.8.The index method is used for searching lists to find the index of the first occurrence of a value
7.12.9.Parallel Iteration

7.12.10.Modifying a list
7.12.11.Accessing items in sublists