ni tsuite 「について」 vs ni yoreba 「によれば」


What is the difference between ni tsuite and ni yoreba, because the meaning is
seems the same, regarding and according to. If its different when or what
situation I can use it. Thanks




If you search for both terms in the dictionary, you will find out that they
are quite different:

> について means about, concerning.  
>  によれば means according to.

Just like in English, these similar phrases are not interchangeable:

> 天気予報によれば今夜{こんや}は[雪]{ゆき}になるそうだ。  
>  **According to** the weather report, there will be snow tonight.  
>  天気予報について何も知りません。  
>  I know nothing **about** the weather report.




If you search for both terms in the dictionary, you will find out that they
are quite different:

> について means about, concerning.  
>  によれば means according to.

Just like in English, these similar phrases are not interchangeable:

> 天気予報によれば今夜{こんや}は[雪]{ゆき}になるそうだ。  
>  **According to** the weather report, there will be snow tonight.  
>  天気予報について何も知りません。  
>  I know nothing **about** the weather report.

