Add to ORKGRad se bavi primjenom tehnika D3.js biblioteke koje omogućuju spajanje elemenata podataka s elementima web stranice i kako na temelju tih podataka možemo mijenjati atribute elemenata web stranice. Kroz analize grafikona upoznajemo se s osnovama D3.js biblioteke te objašnjavamo korištenje alata navedene biblioteke za postizanje vizualizacije.This paper is concentrated on the use of the D3.js library technique that allows you to merge data elements with web page elements and how they can modify the attributes of web page elements based on that information. By analyzing the charts, we get to know the basics of the D3.js library and explain how to use the tools of the specified library to achieve visualization