What is bad data? Some people consider it a technical phenomenon, like missing values or malformed records, but bad data includes a lot more. In this handbook,

"Mapping the world of data problems"--Cover.

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One of the "six best books for data geeks" - Financial Times With over 200 images and extensive how-to and how-not-to examples, this new edition has everything

Now that people are aware that data can make the difference in an election or a business model, data science as an occupation is gaining ground. But how can you