Wilde Max De Wilde & Verborgh Ruben Verborgh 
Using OpenRefine [EPUB ebook] 

The book is styled on a Cookbook, containing recipes — combined with free datasets — which will turn readers into proficient Open Refine users in the fastest possible way. This book is targeted at anyone who works on or handles a large amount of data. No prior knowledge of Open Refine is required, as we start from the very beginning and gradually reveal more advanced features. You don’t even need your own dataset, as we provide example data to try out the book’s recipes.