Martinus Nijhoff Publishers was an independent academic publishing company dating back to the nineteenth century, which is now an imprint of Brill Publishers. The name was changed to Brill–Nijhoff in 2013. Nijhoff's portfolio focuses on areas in public international law, human rights, on humanitarian law and increasingly on international relations. Its annual publication program consists of over 20 academic journals, 20 annuals, and some 120 new book titles. Its back-list comprises over 2,000 titles.