hello

I recently got to know about mixolydian, I was wondering if anybody could tell me more about it or give me some websites to visit and to how mixolydian can be used in song creation ?

i understand so far that mixolydian mustly are used to create catchy songs or riffs. I understand that acdc mainly uses mixolyidan to there songs, thats why people say that they have made the same ablum 12 times. but can anybody inlight me in how acdc uses mixolydian in their songs and maybe how they approch a song to make so damn catchy