GBP (Pound Sterling) currency pair

Major characteristics the GBP (Pound Sterling)
This was the reference currency until the beginning of World War II, as most transactions took place in London. This is still the largest and most developed financial market in the world and as a result banking and finance have become strong contributors to the national economical growth. The United Kingdom is known to have one of the most effective central banks in the world, the Bank of England (BOE).

The Sterling is one of the four most liquid currencies in the Forex arena and one of the reasons is the mentioned highly developed capital market.
While 60% of the volume of foreign exchange are made via London, the Sterling is not the most traded currency. But the good reputation of the monetary policy of Great Britain and a high interest rate for a long time contributed to the popularity of this currency in the financial world.
"Even though the economic unit using the Pound Sterling is technically the United Kingdom rather than Great Britain, the ISO currency code is GBP and not UKP as sometimes abbreviated. The full official name of the currency "Pound Sterling", is used mainly in formal contexts and also when it is necessary to distinguish the United Kingdom currency from other currencies with the same name such as the Guernsey Pound, Jersey Pound or Isle of Man Pound.
The currency name is sometimes abbreviated to just Sterling, particularly in the wholesale financial markets, while the term British Pound is commonly used in less formal contexts, although it is not an official name for the currency."