This is the companion sans family to make the Librum serif families work as well as they do. By companion, I do mean stylistically compatible. But mainly, they have the same vertical metrics.
So they work very well for run-in heads, inline character styles, and all the rest of the needs in large books with complex formatting. They are designed for use in InDesign, and they work very well in that environment.
The fonts use the same OpenType feature files as the rest of the Librum families. The feature files for the italic and bold are more limited—as I have rarely used things like that [over the past 20+ years].
The character shapes are a bit whimsical. The original ancestor to this book design sans was a very playful font I released as Aerle. It’s been calmed down a lot, but is still loose and friendly.
For a great deal on the Librum Book Design Group, all fifteen fonts, please look at the bottom of the Buying Choices tab!
