Librum Sans is a 4-font family specifically constructed for its use in book design. Its vertical metrics are identical to Librum, Bream, and Librum E. So, it works well for run-in heads, nested styles, and so forth. The character sets and OpenType features are identical to Librum and Bream.
The fonts were developed as a 15-font book design group whilewriting my new book, Practical Font Design With FontLab 5.
Font Family: