This looks interesting, but the first page literally says not to post the link to the PDF, but post to here instead: <a href="http:&#x2F;&#x2F;www.cs.huji.ac.il&#x2F;~shais&#x2F;UnderstandingMachineLearning&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.cs.huji.ac.il&#x2F;~shais&#x2F;UnderstandingMachineLearning...</a>.