Some of the world's most powerful men and women convened in Docklands yesterday to thrash out what has been described as the most important agreement yet in tackling the world's tumultuous economic conditions.
The measures on trade are perhaps of most interest to buyers. The leaders pledged to refrain from introducing protectionist trade barriers or impose export restrictions on goods and services.
The group also unveiled $250 billion of funding to support trade finance, through export credit and investment agencies.
Yesterday's announcement was followed by no shortage of backslapping as leaders hailed the fight back at the "historic" London meeting. But as the G20 circus leaves town, only time will reveal if it has been a success.
Will measures on trade mitigate protectionism and boost global purchasing?