BarChart

BarChart[{y1,y2,…,yn}] makes a bar chart with bar lengths y1,  y2, ….

BarChart[{…,wi[yi,…],…,wj[yj,…],…}] makes a bar chart with bar features defined by the symbolic wrappers wk.

BarChart[{data1,data2,…}] makes a bar chart from multiple datasets datai. 

Please visit the official Wolfram Language Reference for more details and examples on core symbols.