Disclosure
StackChief is free to read. It's funded by sales of one book, and this page explains how that works so you can weigh my recommendations accordingly.
I wrote the book I recommend
Mastering the Tech Interview is written by me, Sam Erickson, and published by StackChief. When you buy it, I earn a royalty. That's why it appears on this site.
What doesn't change
Articles are written to be useful on their own. The book is mentioned where it's relevant, and the site never shows Amazon prices or ratings, because I can't keep those accurate. Check Amazon for the current details.