Evaluating the quality of a typeface

For a while already, I have been thinking about ways how users of typefaces can better assess the quality of different fonts and compare them to find the fitting choice for their work. Like students, graphic designers, even laypeople, leaving mere taste behind and have some criteria at hand to inform their decisions. This is a work in progress draft and it’s currently including point both for users of type as well as designers of typefaces. I will probably split this up in future versions of this list.

Features of “good” fonts

– good technical quality of the drawing/outlines (continuous curves, even rounds, no bumps; only visible in the outlines: curve and tangent points placed at optimal positions, optimal balance of off-curve points, no superfluous on-curve points)

– even stroke thickness fitting the design of the typeface

– related proportions in related characters (n/m/h, b/d/p/q, O/C/G/Q etc.)

– similar detailing across characters (treatment of related serifs, bowls, extenders)

– optical compensation (larger rounds, overshoots, thinning of strokes at joints, optical middle, making verticals thicker etc)

– harmonious spacing that fits the design (fitting the size of counters, optically even space between all glyphs, not too tight or too loose)

– individual spacing adjustment of tricky letter combinations where needed (= kerning; high number of kerning pairs may indicate spacing flaws)

– wordspace that fits proportions of the design (many low-quality free fonts forget to even set the wordspace)

– completeness of character-set for the task and language at hand (like missing basic accented characters like umlauts, ß or œ/æ)

– fitting design of auxiliary characters like punctuation, numerals, currency symbols etc.

– appropriate vertical dimensions (no clipping, no overlapping extenders when set solid, not too much line spacing)

– functioning OpenType features, if included, that follow the OT-specifications

– well-designed diacritical characters that meet standards of native speakers (size and position of accents, appropriate [historical] form of diacritics that fit the design)

– basic, if only automatic, hinting for reasonable rendering on Windows systems

– related styles that fit well together as a family (share design details and proportions; just one single weight makes a typeface less useful for more complex design)

More subjective things to consider:

– Does the typeface meet the design goals it has (according to its designer/publisher) and lives up to its marketing claims? (Is it suitable for body copy and small sizes if they say so; is it working well in large sizes and headlines as is?)

– Is the typeface offered at a suspiciously low price point that could let you assume that not that much work has been put into it?

– Does the typeface come from a font sharing website (potentially illegal), a free fonts website, or an otherwise less commercially established outlet?

– Is the design based on outlines by somebody else that were slightly tweaked or stylistic filters applied? Does it carry a name that may indicate closeness to another design?

Criteria that the user can’t assess easily but that type designers should consider:

– Is it a unique design idea that adds something new to the pool of available typefaces?

– Is it a revival of a previously designed/released typeface that was not available digitally, or only in low quality, or incomplete?

– Does the designer have the right to base their work on previously existing forms by someone else, release them, or use a particular name for their typeface?

 

And then there are of course typefaces that are intentionally designed to be weird, wonky, imperfect, distressed, uneven, casual or handmade etc. They are not meant to be evaluated by the same set of technical criteria, but you get the idea.

Regarding taste: “If there were an individual, readily recognized quality or characteristic which the type designer could incorporate in drawings that would make any one type more beautiful, legible, or distinguished than another, it is obvious that only type of that kind would be designed.” — Frederic W. Goudy (via John Savard)

That would be very sad. So experiment away, but still make and use typefaces that work well for a given task and are worth the effort.

Some resources:

Underware’s Type Workshop

Briem’s Notes on type design

Microsoft’s Character design standards (how to design certain glyphs)

Bezier Curves and Type Design: A Tutorial

Tal Lemming’s OpenType Cookbook

Diacritics – All you need to design a font with correct accents

The Insect Project – Problems of Diacritic Design for Central European Languages

Context of Diacritics

Cyrillic Type Design: a Critical Context

The relatively easy way to find out the quality of a Cyrillic typeface

Adobe Latin Character Sets

The Raster Tragedy – What is Hinting

FontDrop, to check what is included in a font and how it works

Impallari Font Testing

http://typedrawers.com/discussion/2304/aspects-of-quality-for-a-typeface

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