Off the Charts! Data Interpretation: Crushing Standardized Test Math for the GMAT®, GRE®, SAT®, PSAT/NMSQT®, and ACT

Margo's textbook on interpreting charts and data is very clear, easy to follow and straight forward. Each different type of chart is broken into a chapter and she outlines how to approach each chart type and the appropriate use case for each of them. I particularly liked the strategies in the book that are helpful for standardized testing.

I loved this book. Written extremely well and exhibits concrete examples of how to interpret graphs and analyze them correctly. For instance, this was fundamental for me to know in the world of consultancy and thanks to this precious piece of work I managed to land at one of the top consulting firms in the world. The author writes in an extremely user friendly way and everything is depicted at an exhaustive and complete level. I honestly recommend this for people that have problems with interpreting data, but not only. Really useful also to learn how to communicate the data itself in a very clear and objective manner.

I bought this book because I got a 3/8 in IR. After only a few weeks with this book, I retook the GMAT and scored a 7/8! You can't do well without first mastering the basics. This book ensures that you get all of that - plus I am able to apply these at work. If you want that top score, this is the book for you.

This book does an incredible job at simplifying one of the most complex topics on the GMAT. The visual, example oriented approach does a wonderful job at educating the reader.

I have always struggled working with Charts and tables. Margo's approach makes things more straight forward and easily digestable -- she has made me a better Math student!