This one's dense! Much of it feels like some kind of historical ledger, but the way its lists are laid out reminds me a bit of The Iliad, and keeping that in mind lets me treat them as something that sets the rhythm of the rest of this Book.
A LOT happens in it. It deals predominantly with maintaining order as many of the Hebrews grow discontented with the toils of their currently nomadic lifestyle. There are a lot of assertions of rules, and reassertions of order. Some of it is quite brutal by modern standards, but having read other ancient epics, I understand that this is to be expected.
The language is very beautiful, and I got a lot out of it, even though I won't be able to retain everything - especially upon first readthrough! Remember to respect your pets if they're not cooperating with you, and remember that if they're being obstinate, they might just see an Angel of the Lord you haven't noticed yet.