Sparklelord

Hello everyone, I am looking for a somewhat prioritized Runequest/Glorantha reading list. I have just started up Runequest and read the basic materials, ie. the boxed starter set and the rulebook, beastiary, GM screen materials. But now I am a little confused as to what books I should consider buying and reading next to get a good idea of the Glorantha setting and be able to provide detailed backgrounds and descriptions for my players. I come from the King of Dragon Pass and Six Ages games, so my main image of Glorantha is "it's very fantastic and deliciously random." Just making it all up is a time honoured tradition for me, but I like to have a base for my imagination. And since Glorantha honestly is quite inspiring, I would like to know more of the setting. Is there a sort of recommended reading list? I would for example like to know the merits of reading the cult books versus the Glorantha guide set. In what order should the cult books be read? Is the Red Book of Magic great enough in material presentation to be a must read? Is the item book very optional? Are any of the story books good for playing or idea mining? That sort of concerns. Does anyone have good advice?