The contemporary art market is an international juggernaut, throwing off multimillion-dollar deals as wealthy buyers move from fair to fair, auction to auction, party to glittering party. But none of it would happen without the dealers - the tastemakers who back emerging artists and steer them to success, often to see them picked off by a rival. Dealers operate within a private world of handshake agreements, negotiating for the highest commissions. Michael Shnayerson, a longtime contributing editor to Vanity Fair, writes the first-ever definitive history of their activities.

In 1945, the Soviet Union controlled half of Europe and was a founding member of the United Nations. By 1991, it had an army four million strong, 5,000 nuclear-tipped missiles, and was the second biggest producer of oil in the world. But soon afterward, the union sank into an economic crisis and was torn apart by nationalist separatism. Its collapse was one of the seismic shifts of the 20th century.

From launchpad explosions to a pernicious cricket infestation to the demanding management style of Musk himself, the rise of SpaceX was beset with challenges and far from inevitable. Find out how the startup beat the odds and flew high enough to outpace their rivals... and where they're going next.

For Americans, World War II began in December of 1941, with the bombing of Pearl Harbor; but for Poland, the war began on September 1, 1939, when Hitler's soldiers invaded, followed later that month by Stalin's Red Army. The conflict that followed saw the debut of many of the features that would come to define the later war-blitzkrieg, the targeting of civilians, ethnic cleansing, and indiscriminate aerial bombing-yet it is routinely overlooked by historians.

From the days of Freud and Skinner to the modern science of fMRIs and genetics, Introduction to Psychology is a grand introduction to one of the most captivating fields of inquiry - where the subject is you, and everyone around you. Taught by Professor Catherine A. Sanderson of Amherst College, these 36 insightful lessons not only give you a panoramic grounding in the history, methods, and fundamental findings of psychology, but they also introduce you to the most up-to-date 21st-century research and discoveries.

Catherine de' Medici was a ruthless pragmatist and powerbroker who dominated the throne for 30 years. Her youngest daughter, Marguerite, the glamorous "Queen Margot," was a passionate free spirit, the only adversary whom her mother could neither intimidate nor control.

The Mosquito was probably World War II's most versatile combat aircraft. This book contains hundreds of firsthand accounts from many of the two-man crews who flew in them; pilots and navigators. It portrays the dramatic experiences of flying in its many roles as pathfinder, night fighter, reconnaissance aircraft, precision bombing, and low-level ground attack aircraft. It describes many of the RAF's most audacious raids on prime, but difficult, targets where carpet bombing by heavy bombers was likely to be ineffective and cause unnecessary casualties to civilians.

During the third week of February 1944, the combined Allied air forces based in Britain and Italy launched their first round-the-clock bomber offensive against Germany. Their goal: to smash the main factories and production centers of the Luftwaffe while also drawing German planes into an aerial battle of attrition to neutralize the Luftwaffe as a fighting force prior to the cross-channel invasion, planned for a few months later. Officially called Operation ARGUMENT, this aerial offensive quickly became known as “Big Week,” and it was one of the turning-points of World War II.

In the aftermath of World War II, Prussia - a centuries-old state pivotal to Europe's development - ceased to exist. In their eagerness to erase all traces of the Third Reich from the earth, the Allies believed that Prussia, the very embodiment of German militarism, had to be abolished. But as Christopher Clark reveals in this pioneering history, Prussia's legacy is far more complex.

"It doesn't take an Einstein to understand modern physics," says Professor Wolfson at the outset of these 24 lectures on what may be the most important subjects in the universe: relativity and quantum physics. Both have reputations for complexity. But the basic ideas behind them are, in fact, simple and comprehensible by anyone. These dynamic and illuminating lectures begin with a brief overview of theories of physical reality starting with Aristotle and culminating in Newtonian or "classical" physics.