If you daily job involves programming or writing code, then yes. Absolutely. What really is a data structure ? Wikipedia [1] defines it as "a data structure is

If you daily job involves programming or writing code, then yes. Absolutely. What really is a data structure ? Wikipedia [1] defines it as "a data structure is a particular way of storing and organizing data in a computer so that it can be used efficiently". Storing and organizing data. There you go. If you write code, you are always storing/organizing/manipulating data aren't you. whether it is front end, back end whatever. Everything is data end of the day. Now I am of course not saying that you must know linked list or stacks or queques etc. But you must know data structures in general because that is a core foundation. [1] http://en.wikipedia.org/wiki/Data_structure http://en.wikipedia.org/wiki/Data_structure