Trip­li­cate is used for code sam­ples and other mono­spaced type­set­ting in this book (e.g., one space be­tween sen­tences). It’s also one of the fonts avail­able for body text in this book. (Click on the font-se­lec­tion tool­bar at the bot­tom of the page to try it.)

True, my of­fi­cial ad­vice is that in gen­eral you should avoid mono­spaced fonts. But in some cases, a mono­spaced font is the right tool for the job. So why not have a nice one?

1. Trip­li­cate has true ital­ics, real small caps, old­style fig­ures, swash caps, box-draw­ing char­ac­ters, and other superfluities.

2. Trip­li­cate in­cludes a Code vari­ant with char­ac­ters op­ti­mized for pro­gram­ming and ter­mi­nal win­dows (also seen in Why Racket? Why Lisp?).

   `$te_fl{1234*567~890} Reg­u­lar
`$te_fl{1234*567~890} Code

3. Of in­ter­est to screen­writ­ers: Trip­li­cate also in­cludes a Short vari­ant that oc­cu­pies the same hor­i­zon­tal and ver­ti­cal space as Mac OS Courier sys­tem font, so it’s easy to switch with­out al­ter­ing your doc­u­ment templates.

4. Trip­li­cate has a short, plain-Eng­lish font li­cense that in­cludes per­mis­sion to use it in PDFs, web­sites, apps, and elec­tronic books. It is a one-time pay­ment, not a subscription.

5. Each li­cense cov­ers mul­ti­ple peo­ple, but only within a sin­gle or­ga­ni­za­tion or fam­ily. A li­cense can­not be split among friends or ran­dom strangers. De­tails here.
6. Trip­li­cate has no demo ver­sion, but I of­fer a 30-day re­turn op­tion: if the fonts aren’t your style, you can can­cel your li­cense for a refund.