quartz/content/notes/16-distributing-cognition-and-visual-design-typography.md
Jet Hughes eec8badee0 update
2022-04-28 11:51:17 +12:00

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---
title: "16-distributing-cognition-and-visual-design-typography"
aliases:
tags:
- info203
- lecture
sr-due: 2022-04-30
sr-interval: 3
sr-ease: 250
---
# Dist cognition
when interfaces help people disribute cognition it can
- exourage experimentsation
- scaffold learning and reuce errors through reduncdancy
- show (only) differences that matter
- convert slow calculation into fast perception
- support chunking, especially by experts
- increase effieciency
- facilitate collaboration
good representation shows only relevant information and enables:
- comparison
- exploration
- problem solving
deep vs shallow interface
# Visual design
combine text and graphics. how to represent?
- whitespace for grouping
- size contrasts for heiarchy
- variable scale and weight
- colors
three goals
- guide
- pace
- message
Three tools
- typography
- layout
- colour
# Typography
most common
- gill sans
- helvetica
- calibri
- arial
- times
three types
- serif
- sans serif
- handwritten
point size
![100](https://i.imgur.com/9lMGK1g.png)
leading depends on the font and the user setting but usually is 20% of the font
![100](https://i.imgur.com/eABpxfK.png)
x height depends on the font.
- smaller x height adds "elegance"
- larger x height isbettwe to low res displays
![250](https://i.imgur.com/BvPCazi.png)
ascenders and descender usually correlates with x height (small x-height > large ascenders and descenders)
![400](https://i.imgur.com/Iv7FK4F.png)
weight: usually regullar and bold, also light semibold, ultrabold
![400](https://i.imgur.com/YboKpT7.png)
sans serifs have less line width variation
![400](https://i.imgur.com/3GkpMf3.png)
some fonts provide small caps and lowercase numbers
![](https://i.imgur.com/lEYKFl8.png)
- serif hypothesis
- serif fonts are easier to read
- preferable for long stretches of text because serifs provide anchors and guide the eye
- not proven
more info on the top than the botton
![300](https://i.imgur.com/XEF8nlr.png)
expectation plays an important role
![300](https://i.imgur.com/Uu6B2bQ.png)
## which font to use?
- depends on context
- recoomentations
- slides and posters sans serif
- printed text serif
- web sans serif
- sans serif is better in lower resolutions
- combinations: (header sans, text serif)
- comic sans good for dyslexia
- logos should catch the eye
![300](https://i.imgur.com/T80gQOA.png)