Whitespace Is a Load-Bearing Wall
Space is not what is left over after the content. It is the thing doing the grouping, the pacing, and most of the explaining.
Ivo Lindqvist, Contributing writer

Ask someone to tighten a layout and they will almost always reach for the space first. It is the obvious candidate. It looks like nothing, it costs a scroll, and removing it feels like efficiency.
Then the page gets denser and, strangely, harder to read. Not because anything was removed, but because the thing that was holding the meaning together is gone.
Space is the grouping mechanism
A reader decides what belongs with what before reading a single word. They do it by proximity, and they do it in milliseconds. Two elements close together are one idea. Two elements far apart are two ideas. That is the entire system, and it works whether or not you designed it deliberately.
Which means uneven spacing is not a cosmetic flaw. It is a factual error. A heading sitting equidistant between the paragraph above it and the paragraph below it has genuinely lost the information about which one it introduces.
If a heading is not visibly closer to what it labels than to what precedes it, the layout is lying about the structure.
The rule that fixes most layouts
Give every element more space above than below when it introduces something, and more below than above when it concludes something. Then make sure the gap between groups is at least twice the gap inside a group.
That is nearly all of it. Not a system with twelve tokens, just a consistent ratio applied honestly. Most layouts that feel amateurish are not badly proportioned, they are inconsistently spaced, and the reader is doing the grouping work that the design should have done for them.
Space controls pace as well as structure
Long-form reading has a rhythm, and space is the metronome. A wide margin and generous line spacing slows a reader down and signals that the material rewards attention. A tight, dense block signals reference material, something to scan rather than read.
Both are correct choices. The mistake is making one and meaning the other, which is how you end up with an essay that reads like a spreadsheet.
When you genuinely need to compress
Sometimes the density is real and the content will not shrink. In that case, take the space out of one place rather than everywhere:
- Reduce the gaps inside groups, never the gaps between them
- Shorten the margins before you shorten the line height
- Cut a whole section rather than compressing every section
Uniformly squeezing the whole page removes the contrast that made the structure legible. Cutting one thing entirely keeps it. The reader will forgive you for showing them less. They will not forgive you for showing them everything at once.