I read somewhere that Hebrew has evolved from Egyptian pictographs. If that's the case, have anyone read about records that trace exact evolution from a pictograph to a Hebrew letter, or is this something very hard to research because of the lack of historical data?

I read somewhere that the Hebrew writing system evolved from Egyptian pictographs. If that's the case, have anyone read about records that trace exact evolution from a pictograph to a Hebrew letter, or is this something very hard to research because of the lack of historical data?