Final answer:
The blue 'i' sign represents a universal information sign commonly used to indicate information points for assistance and tourist guidance.
Step-by-step explanation:
Information signs, especially those that are standardized and recognizable across different regions, such as the blue information sign with a letter 'i' typically signify general information points where you can receive assistance, directions, or tourist information.
This blue 'i' sign is common in many parts of the world and is often found at airports, train stations, tourist sites, and within cities. The color blue is generally associated with information services in the context of signage, making the sign easily identifiable for those seeking help or guidance.