no one can help me with this??
Book suggestion - looking for "key squares" or themes of openings

There are several good YouTube videos on openings, that explain the themes well.
However, I would recommend getting a cheap copy of either Reuben Fine's The Ideas Behind the Openings or his Chess the Easy Way which includes much of his "Ideas" and ads endgame, middle game, and general positional advice.
Other books exist, and plenty of advice is available.

I am unfamiliar with NimzoRoy's FCO suggestion, but the 2nd reviewer refers to it as a modern version of The Ideas Behind...., so we are apparently "on the same page"

What you are really looking for is a good middlegame book about pawn structures. The Andy Soltis book about pawn structures comes to mind.

Fine's books are certainly a lot better than no books at all and also available dirt cheap compared to FCO but there is always that minor detail about them being several decades out of date, so don't expect too much on the SD Fischer Variation or Najdorf Variation, or the Benko Gambit etc. from Fine. Maybe some hopelessly outdated theory - if you're lucky. And certainly not incisive, up to date ideas behind openings Fine never heard of or never played, or did hear of and never played because they were considered garbage until decades after he stopped writing.
BUT I think they would be a good start - definitely not as good as his book on middlegames or Basic Chess Endings but better than nothing
Thanks for all te replies! I did a preview of the FCO book and it looks good but pretty in depth. I muh prefer endgame and don't like opening theory and I may buy it on kindle anyway but I was looking more for like a list of opening moves through move 8 or so and main lines with the key square or theme. Something like a 3 sentence explanation of each one a bullet point . Is it just not that simple or just nothing like that available?
The comment about really wanting early game themes and pawn structures is probably truthfully more accurate. Usually in my games I don't make blunders in the opening but don't really have a plan once my pieces are developed. I am either defending aggressive players off, or eventually I get tempted to play a tactical trick that i calculate as good, but computers and solid players come up with something I didn't think of.

There's a book called something like 101 Chess Openings for Beginners but I don't think it really covers the ideas very well. Soltis's book on pawn structures is excellent but very advanced.
FCO or Fine's Ideas Behind the Chess Openings is probably your best bet.

I second the recommendation of FCO. It's a great resource for getting an overview of an opening, seeing some of the most common lines, and more importantly, learning the ideas behind the opening and what the typical plans are.

I am a novice player. I think I am around 1230 on standard games on here. Against good players I usually am losing after the opening and struggle with coming up with good positional ideas in the middlegame. I have not studied openings very much, prefering to study the endgame. What I was looking for is a book or source that detail out several popular openings and the main variations and instead of going into a bunch of theory, just gave a summary about the key IDEAS behind the opening. For example, sometimes people talk about in Sicilian variations, that the advance for black of the d pawn to d5 is key. Sometimes they talk about openings as designed for queenside attacks or other specific principles. Often there are references like, "of course, in the Benko gambit, the main battle is over the b5 square" or something. These are just examples i made up, but does anyone have a good source for that? Just a simple book of major lines and variations that highlight the key themes or squares behind an opening? Thanks!