Virtually all human societies were once organized tribally, yet over time most developed new political institutions which included a central state that could keep the peace and uniform laws that applied to all citizens. Some went on to create governments that were accountable to their constituents. We take these institutions for granted, but they are absent or are unable to perform in many of today’s developing countries—with often disastrous consequences for the rest of the world.

In 2014, Francis Fukuyama wrote that American institutions were in decay, as the state was progressively captured by powerful interest groups. Two years later, his predictions were borne out by the rise to power of a series of political outsiders whose economic nationalism and authoritarian tendencies threatened to destabilize the entire international order. These populist nationalists seek direct charismatic connection to “the people”, who are usually defined in narrow identity terms that offer an irresistible call to an in-group and exclude large parts of the population as a whole.

In a rare blend of scientific insight and writing as elegant as the theories it explains, one of the world's leading string theorists, peels away the layers of mystery surrounding string theory to reveal a universe that consists of 11 dimensions where the fabric of space tears and repairs itself, and all matter-from the smallest quarks to the most gargantuan supernovas-is generated by the vibrations of microscopically tiny loops of energy.

What is life? What is my place in it? What choices do these questions obligate me to make? More than a half-century after it burst upon the intellectual scene - with roots that extend to the mid-19th century - Existentialism's quest to answer these most fundamental questions of individual responsibility, morality, and personal freedom, life has continued to exert a profound attraction.

In The Habsburgs, Martyn Rady tells the epic story of a dynasty and the world it built - and then lost - over nearly a millennium. From modest origins, the Habsburgs grew in power to gain control of the Holy Roman Empire in the 15th century. Then, in just a few decades, their possessions rapidly expanded to take in a large part of Europe stretching from Hungary to Spain and from the Far East to the New World. The family continued to dominate Central Europe until the catastrophe of the First World War.