Well its not an easy question to answer, which is probably why it was skipped. There isn't always an order. Sometimes a character with multiple monthly books will have an arc or event that spins out into all their books, in which case if Part 1 of said story is in ASM and Part 2 is in Web, and 3 is in Spec, you will obviously read ASM, then Web, then Spec in that order.
The opposite would be during that crap-ass Back in Black/"Let's cater to the SM3 movie and lie to the fanbase and say this has NOTHING to do with the movies" event (the era where Spidey went all emo and aggro because his Aunt was shot yet at the same time was still making jokes and quips and acting like nothing happened) where you could read any of the Spider-Man titles independently from each other or all of them in any order and completely ignore the rest, and it DID NOT MAKE A DIFFERENCE because they DID NOT affect each other, despite ALL OF THEM being apart of that "Back in Crap" joke.
Look over at DC. Plenty of Batman titles simultaneously released at once and they almost never connect or show any reading order. Batman Eternal was happening at the same time as Batman's Endgame, where in Eternal the entire city of Gotham was being ravished by all of Batman's villains, while over in Endgame...the entire city was...erm...being ravished..by the Joker?
So...you see the problem here? There is only a necessary reading order when editorial wants it, and otherwise they're just more books out there to read with no strong continuity between them.