Oznerol7 said:
Ok thanks, just one question tho: The second movie aired years after the series release, since i'd like to experience it the way the original author intended if i follow this order i'll follow the novel order or it's just an in-lore chronological order? Because if it's novel-wise it's the one i want, if it's chrono-wise but the prequels were thought to be after then i'll start with the series
"My Conquest Is the Sea of Stars" isn't from the beginning of the novel, but it's based on a side story written by the author, and this movie's events get referenced in Overture and the main series.
"Overture to a New War" covers the first 2 eps of the main series. I haven't read the novel so I'm not sure if some of it is anime-original or not, but it's a better version compared to the first 2 eps, the strategies are better explained in the movie and the episodes seem rushed in comparison.
If you really want to be strict with your novel order then you could skip the first movie, but the order I posted is the one the fans usually recommend.