Lesson 1Why grids exist
Alignment, proximity and hierarchy all become far easier to apply consistently with an underlying structure, rather than placing every element by eye. A grid is that structure: an invisible framework of columns, rows and margins that elements align to, ensuring consistency within one design and across related designs.
Not a new principle
A grid is a tool for reliably achieving the alignment and consistency from Module 1, rather than eyeballing it freehand every time — practical and supportive, not another abstract rule.