London Tech Week brought together 55,000 attendees to enjoy hundreds of events taking place across the city. Microsoft was a headline partner, holding talks on artificial intelligence, quantum computing and leadership. Here’s what happened:

HoloLens is being used by companies to hold virtual meetings, as well as by police forces and paramedics, among others

Microsoft Rubik’s Cubes

A woman uses HoloLens on the Microsoft stand at the AI Summit

The Microsoft stand at CogX, in Tobacco Dock, Wapping

Haiyan Zhang, Director of Innovation at Microsoft Research Cambridge, talks about the Emma Watch

An interactive light exhibit at the Art of Work event

An interactive light exhibit at the Art of Work event, which responded to movement

Julie Love, Director of Microsoft’s Quantum Computing business, talks about the company’s efforts to build the next-generation of computers

Microsoft has released a book entitled The Future Computed: Artificial Intelligence and its role in society

Microsoft staff at the AI Summit

Norm Judah, CTO of Microsoft Services

HoloLens is a mixed-reality device that allows wearers to place digital objects into the real world

Julie Love, Director of Microsoft’s Quantum Computing business, on stage at CogX

The Partner Pavilion at the TechXLR8 event

At the Art of Work event, Lord Coe talks about how he helped bring the London Olympics to life

HoloLens proves popular at the Microsoft stand at the AI Summit

The Microsoft stand at the AI Summit

Microsoft’s Richard Potter (far right) speaks at the AI Finance Summit, at the ExCeL

Sadiq Khan, the Mayor of London, kicks off London Tech Week

Michael Wignall, National Technology Officer