Mother Culture is what CM used to describe mothers’ own ongoing education and what we do to fill up our own tank.
I would strongly suggest you lay them outside by side and succinctly (!) explain the positives and drawbacks of both options to your husband and ask him to make a decision.
I can almost guarantee he will make a fairly quick but sensible recommendation, very quickly summing up what he knows of you, your children and your circumstances.
I went through a similarly agonising decision over history for my dyslexic learning challenged son. I mean I was months tossing and turning over it and second guessing myself. Finally I showed the options to my hub. He took about 30 seconds. No kidding. I was shocked and asked him how he came to his decision. He said L would struggle with one because too long and complicated; be bored with another because there were zero illustrations; and so picked 3rd option because he felt it had a nice variety and had a few illustrations which he felt would help our son.
So 3 months with no decision versus 30 seconds amd a definite outcome.
Then I had to follow through. And you know he was right!