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(This article was first published on <strong><a href="http://b-rodrigues.github.com/2017/01/07/my-free-book-has-a-cover"> Econometrics and Free Software</a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
<p>I’m currently writing a book as a hobby. It’s titled <em>Functional programming and unit testing for data munging with R</em> and you can get it for free <a target="_blank" rel="nofollow" href="https://leanpub.com/fput/">here</a>. You can also read it online for free on my <a target="_blank" rel="nofollow" href="http://b-rodrigues.github.com/2017/01/07/www.brodrigues.co/fput">webpage</a> What’s the book about?</p>
<p>Here’s the teaser text:</p>
<blockquote>
<p>Learn the basics of functional programming, unit testing and package development for the R programming language in order to make your data tidy!</p>
</blockquote>
<p>The book now has a beautiful cover thanks to <a target="_blank" rel="nofollow" href="https://twitter.com/putosaure">@putosaure</a>. Putosaure is a Paris based graphic designer who also reviews video games. He is also a very good friend of mine and I am very happy he made this beautiful cover for my book:</p>
<p><img src="https://i0.wp.com/b-rodrigues.github.com/assets/images/cover.png?resize=456%2C590" data-recalc-dims="1"></p>
<p>In it, we see a guy holding a shield with the Greek letter lambda, which also happens to be the letter to design functional programming. I’ve added the title with the <a target="_blank" rel="nofollow" href="http://www.dafont.com/komika-title.font">Komika Title</a> font.</p>
<p>Condiser this cover in beta, it’ll probably evolve some more. But I couldn’t wait to use it!</p>
<p>I love it. Hope you’ll love it too!</p>
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<div>To <strong>leave a comment</strong> for the author, please follow the link and comment on their blog: <strong><a href="http://b-rodrigues.github.com/2017/01/07/my-free-book-has-a-cover"> Econometrics and Free Software</a></strong>.</div>
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