Python for Data Analysis: Data Wrangling with Pandas, NumPy, … by Wes McKinney
Author:Mckinney, Wes. Finding great data analysts is difficult. This pragmatic guide will help train you in one of the most important tools in the field – Python. Filled with practical case studies, Python for Data Analysis demonstrates the nuts and bolts of manipulating, processing, cleaning, and crunching data with Python.