Three days is not a whole lot of time to learn enough of CS to convince your interviewer that you know CS. I would recommend rather than learning something new,

Three days is not a whole lot of time to learn enough of CS to convince your interviewer that you know CS. I would recommend rather than learning something new, just brush up what you already know. Since you say that you rely on libray-provided abstractions it would be good to be able to describe and defend your choices rather than be able to actually implement them -- for example: you should know the complexity of python data structures, if you are going to tell your interviewer you trust the sort method of python's lists: https://wiki.python.org/moin/TimeComplexity https://wiki.python.org/moin/TimeComplexity Here are some resources that might help you do a focused revision/study: https://www.interviewcake.com/ https://www.interviewcake.com/ http://www.thecshandbook.com/ http://www.thecshandbook.com/ https://codility.com/programmers/lessons/ https://codility.com/programmers/lessons/ Don't sweat it if you get stuck on something, just move on ahead and revisit the problem later. Once you've finished the interview though, I would recommend studying things deeply, reading a whole lot of real code and coding as much as possible.