We read lots of books, but the most useful thing we got by word of mouth. "Elimination communication" basically you teach baby to poop when you hold them over

We read lots of books, but the most useful thing we got by word of mouth. "Elimination communication" basically you teach baby to poop when you hold them over the toilet or sink. You can sing a little pooping song or make grunting noises as a queue. This eliminates diaper rash and is much easier to clean up then a poopy diaper. It also makes potty training easier when you get there down the line. You can start very early, 1 month old is fine.