To create shape chart . Here Shape size will increase as per their weight.

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Before follow below steps please upload image into following path for example : C:\Users\User Name\Documents\My Tableau Repository\Shapes

Step-1 Open Tableau Desktop

Step-2 Connect Data-source Example like – Sample Super Store

Step-3 Drag “Region” field dimension into column shelf

Step-4 Go to Mark Shelf -> Shape -> Select shape as per your preference.

Step-5 Drag “Profit” filed measure into Mark -> Size & “Profit” filed measure into Mark-> Label

Please look below image for reference