Christine, for good sized books, a more CM way, what she recommended, was to read the books slowly over time. She had good reasons for this, and I once “tested” this and discovered that there are, indeed, reasons to read slowly. So many of our bigger books, I do indeed schedule slowly, which sometimes mean we read several at a time. However, for very short books, I find that the “benefit factor” of reading slowly is reduced. So those, I often just schedule sequentially.
One thing I might do, when looking at a module’s booklist, is to choose a “spine” type book, or a larger biography, and schedule those slowly, and then just slot in a general “history reading” slot where we read smaller books without deliberately spreading them over the year.
Does this help? Do you need some specific examples?