The Trade in Services Agreement, or TiSA, is potentially the largest trade deal in history, with its proposed members comprising two-thirds of global GDP, yet most Australians have probably never heard of it.

The Trans Pacific Partnership is also currently being negotiated behind closed doors and the new free trade agreements with Japan and China, sold as signature economic achievements of the government, have been recently questioned by the Productivity Commission.

What do these agreements mean for Australia's economy? And how can the public come to better understand them?