If “a” is the letter that terrifies type designers, “b” is the one that quietly does most of the heavy lifting. It looks simple — a stem and a bowl, done — but that simplicity is deceptive. “b” sets the visual template for an entire family of letters that lean on it structurally, which makes it one of the most important glyphs to get right early in the design process.

This is the second entry in our glyph series, where we’re working through every character a font needs, letter by letter. Last time we covered lowercase “a.” Today, we’re looking at “b.”

A Short History of “b”

Like “a,” the letter “b” traces its roots back to the Phoenician alphabet, to a character called beth, which meant “house.” The early pictogram was thought to resemble the floor plan of a simple dwelling — a shape with a defined interior space, which, if you squint, isn’t too far off from the enclosed bowl shape “b” still carries today.

The Greeks borrowed beth and turned it into beta, straightening out its lines into something closer to our modern capital B. Beta then passed to the Etruscans and into Latin, where the Romans locked in the capital B we still use — two stacked bowls attached to a vertical stem.

The lowercase form followed a different path, the same way lowercase “a” did. Roman inscriptions were capitals-only, and it wasn’t until scribes started writing quickly by hand, and later under the standardization pushed during the Carolingian Renaissance, that a distinct minuscule “b” emerged. Writing fast with a pen naturally simplified the double-bowl capital into a single ascending stem with one rounded bowl at the bottom — a shape that was quicker to write and easier to read at small sizes. That Carolingian minuscule “b” is essentially the letter you’re reading in this sentence, more or less unchanged for over a thousand years.

Anatomy of a Lowercase “b”

Lowercase “b” is built from two main components: the ascender, a vertical stem that rises above the x-height, and the bowl, the rounded enclosed shape that sits at the bottom and attaches to the stem.

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The point where the stem meets the bowl is called the joint, and it’s one of the most scrutinized spots in the whole letterform — similar to the junction in “a.” If the joint is too abrupt, the letter feels stiff and mechanical. If it’s too soft or rounded, “b” can start to look mushy or lose definition at small sizes. Type designers spend a disproportionate amount of time getting this single curve right.

Because “b” shares its basic stem-and-bowl structure with “d,” “p,” and “q,” it often functions as a reference letter. Designers frequently draw “b” and then mirror or rotate it to rough out those other letters before adjusting each individually — this is part of why type designers describe “b,” “d,” “p,” and “q” as a structural family within the alphabet, even though each needs its own optical corrections rather than a literal mirror-image copy.

The bowl itself typically shows a slight overshoot past the baseline and x-height, just like the bowl in “a” — rounded shapes need to extend a hair beyond straight guidelines to look optically consistent with letters that have flat tops and bottoms.

Designing the Letter From Scratch

When a type designer sits down to draw “b,” they usually start with the stem, since its height and weight set a baseline for every other ascending letter in the font — “b,” “d,” “h,” “k,” “l,” and often “f” and “t” all take cues from this first vertical stroke.

Next comes the bowl. This is where most of the letter’s personality shows up. A wide, generous bowl gives “b” a friendly, open feel; a tighter, narrower bowl makes it look more condensed and formal. The bowl’s curvature also has to match the curvature established in “a” and “o,” since inconsistent curve tension between round letters is one of the fastest ways to make a typeface look amateurish or unfinished.

The joint between stem and bowl gets drawn and redrawn more than almost any other detail in the letter. Designers typically test it at multiple sizes, since a joint that reads cleanly at 60pt on a screen can clog into a dark blob at 8pt in print. Many type designers actually print out test proofs at small sizes specifically to catch these ink-trap problems before finalizing the curve.

Once “b” is finalized, it becomes a working template — designers check “d,” “p,” and “q” against it, adjusting each so the whole family feels unified without looking like lazy mirror-copies of one shape.

Unique Facts About “b”

“b” is one of the least frequently used letters in English, showing up far less often than vowels or letters like “n” and “t” — but it’s disproportionately important in font design because of its structural relationships with “d,” “p,” and “q.” Get “b” wrong, and you’ve effectively gotten three other letters wrong too.

Interestingly, in some blackletter and heavily calligraphic script fonts, “b” keeps a much closer resemblance to its Carolingian ancestor than almost any other lowercase letter, since its ascender-plus-bowl shape was already close to ideal for a broad-nib pen and never needed much revision.

“b” also plays a key role in kerning tables, since its rounded bowl next to letters like “o,” “e,” or “a” creates awkward visual gaps if not adjusted carefully — bowl-to-bowl pairings are some of the trickiest spacing combinations in any typeface.

“b” in Popular Fonts

In Garamond and Times New Roman, “b” carries visible calligraphic stress, with the bowl thickening and thinning the way a broad pen would naturally produce. In Helvetica, the bowl is more uniform and mechanically even, matching that typeface’s engineered, neutral character. Futura and Century Gothic give “b” a nearly perfect circular bowl attached to a straight stem, reinforcing their geometric, almost architectural feel.

In script and handwriting fonts — a category that shows up constantly in font marketplaces — “b” often gets a looping, connected treatment, with the ascender curling instead of running straight, mimicking the natural flow of cursive handwriting and helping the letter connect smoothly to whatever comes before or after it.

Summary

Lowercase “b” looks unassuming, but it’s a structural anchor for the entire lowercase alphabet — sharing its bones with “d,” “p,” and “q,” and setting the tone for every ascending letter that follows it. From its origins as a house-shaped Phoenician pictogram to the streamlined stem-and-bowl form scribes settled on over a thousand years ago, “b” has stayed remarkably stable while still leaving plenty of room for a type designer’s personality to show through in the curve of its bowl. Next up: lowercase “c,” the letter that’s really just an open circle with an identity crisis.

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