Widgets determine the actions that users can perform with our GUI application; however, we should pay attention to their placement and the relationships we establish with that arrangement. Effective layouts help users to identify the meaning and priority of each graphical element so that they can quickly understand how to interact with our program.

Layout also determines the visual appearance that users expect to find consistently across the whole application, such as always placing confirmation buttons at the bottom-right corner of the screen. Although this information might be obvious to us as developers, end users may feel overwhelmed if we do not guide them through the application by following a natural order.

This chapter will dive into the different mechanisms that Tkinter offers to lay out and group widgets and control other attributes, such as their size or spacing.