If you would like to review the book, please email me at john@johnwengler.com so I can ask my publisher No Starch Press for a complementary pre-publication PDF before May 19, 2026 or hardcopy book thereafter.

As an energy and risk finance executive, I have spent my career living and breathing Excel. But Python is becoming essential for data-driven decision-making. John’s book is a must-read for professionals looking to transition from Excel, harness Python’s power, and stay ahead. It’s both a practical guide and a compelling case for making the shift.
Sid Jacobson, Enterprise Risk Management Executive and Head

When you need more from Excel, Python is a top choice. John’s book is a good source for learning. For example, if you want to extend the functionality of Excel Pivot table, you can look up the matching Python tricks in this book. In reading and consulting the book this way, an Excel user not only can become more capable at work, but also learn the Python language in a natural and efficient way.
Hugh Li, Strategic Quantitative Modeling
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