Complex sentence: I've been trying to get Wikibooks to reverse the policy of chopping up books into smaller and smaller documents because it disadvantages those of us with expensive, slow, intermittent internet access (that is, most of the people in the world).
Split into simpler sentences: I've been trying to get Wikibooks to reverse the policy of chopping up books into smaller and smaller documents. This works against those of us with expensive, slow intermittent internet access (that is, most of the people in the world).