I'm a best-selling author. Every few days a 3rd party sells my book as 'New' or 'Like New' for below the sales price. Only issue is, I'm a self-published author, so there is no way they can be getting the book and selling it for less than what I sell it. I've bought the products multiple times, and each time it's a fake copy of my book (different paper quality, typos, missing pages, weirdness in cover design). This isn't happening just to me — across the board, some of the top coding + ML books are counterfeit. https://www.amazon.com/dp/0578973839?ref_=pe_3052080_3975148...

I'm the author of Ace the Data Science Interview (https://amzn.to/3kF79Fx)! It's basically the CTCI for DS & ML jobs!

I also put up a ton of free question lists on my blog, like this list of 30 real ML interview questions from FAANG + Wall Street (https://www.nicksingh.com/posts/30-machine-learning-intervie...) and 40 real Prob/Stat interview questions (https://www.nicksingh.com/posts/40-probability-statistics-da...)