Mastering Data Analysis With Python Wrangle, Clean, Analyze, and Visualize Data from Scratch

Whether you're a student exploring data for the first time, a professional looking to upskill, or an aspiring analyst preparing for your first role, Data Analysis with Python: Wrangle, Clean, and Analyze with pandas, NumPy, and More is your complete, hands-on guide to turning raw data into real-world insights.
This comprehensive book walks you through the full lifecycle of data analysis-starting with foundational concepts and Python programming, and guiding you through data wrangling, statistical analysis, visualizations, and project-based applications. With a strong emphasis on practical skills, industry best practices, and interactive exploration using Jupyter Notebooks, you'll gain the confidence to tackle real data problems with clarity and precision.
Inside, you'll learn how to:
Build a strong foundation in data analysis: Understand key definitions, lifecycle stages, data types, formats, and use cases across industries.
Get up to speed with Python: Set up your environment, master Python syntax, control flow, functions, file handling, and data structures-even if you're new to coding.
Work with essential libraries: Develop hands-on fluency with NumPy, pandas, MatDescriptionlib, seaborn, and scikit-learn, and know when to use each.
Wrangle and clean messy data: Learn techniques for filtering, reshaping, string manipulation, handling missing values, and fixing inconsistent formats.
Aggregate and combine datasets: Use advanced grouping, merging, joining, and hierarchical indexing strategies to analyze large and complex data.
Analyze time-based and structured data: Explore time series, apply rolling statistics, and manage temporal trends with pandas.
Create clear, compelling visualizations: Tell data stories through well-designed Descriptions using both MatDescriptionlib and seaborn, with export-ready graphics.
Understand statistics the right way: Go from descriptive summaries to inferential statistics with concepts like hypothesis testing, p-values, confidence intervals, and correlation vs. causation.
Perform in-depth Exploratory Data Analysis (EDA): Discover variable relationships, detect outliers, and automate EDA using tools like pandas_profiling and sweetviz.
Optimize for performance at scale: Learn how to work with large datasets using Polars, Dask, and PyArrow, along with memory optimization tips.
Handle unstructured and external data: Scrape the web, process text files, and consume APIs and JSON for richer datasets.
Connect to databases and automate workflows: Use pandas and SQLAlchemy to interact with SQL databases, schedule tasks, and generate reports and dashboards.
Deliver complete, polished projects: Apply everything you've learned in a full end-to-end data analysis project, ideal for portfolios and real-world practice.
With review questions, hands-on exercises, and a complete Jupyter Notebook appendix, this book is more than a guide-it's your personal data analysis toolkit.
Whether you're just getting started or aiming to deepen your skillset, this book will help you move from beginner to confident data analyst-one clean dataset at a time.

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