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\textit{Oh, an empty article!}   You can get started Away from equilibrium, NC shape is governed  by \textbf{double clicking} this text block the kinetics of inter-  and begin editing. You can also click the \textbf{Insert} button below to add new block elements. Or you intrafacet atom diffusion, as well as by the kinetics of deposition to various facets, and the resulting shapes are normally different from the thermodynamic shapes. When NCs grow beyond a certain size, the relative atom deposition rate to various facets should be the main factor in determining NC shape. In this regime, the kinetic Wulff construction  can \textbf{drag be used to predict the shape evolution of faceted crystal growth as described in the  supporting information. Based on a 3-Dimensional shape evolution calculation, we correlate the relative flux of deposition to {111} and {100} facets \frac{F_111}{F_100}  and drop an image} right onto the resulting kinetic Wulff shape in the reversible octahedron-to-cube transformation \cite{Zhang_2006}. Figure 1 shows the shape progression was a function of the relative atom flux \frac{F_111}{F_100}. When the relative flux to {100} facet is more than twice of the flux to {111} facets, we expect to observe octahedra. As F_111 increases relative to F_100, we observe a shape progression to cubo-octahedra to truncated cubes and eventually to cubes for \frac{F_111}{F_100} >= \sqrt{3}. In  this text. Happy writing! work, we choose the seed-mediated Ag polyol synthesis with PVP as the model and use large scale MD simulations to quantify F100 and F111 and construct kinetic Wulff shape plot to probe the cube-to-octahedron transformation. Our study reveals the mechanism by which SDAs impart shape selectivity.