The book should contain all 2048 words from the BIP39 list. I don't think it's worth all that effort. Furthermore, even if the book contains almost all the words that make up your seedphrase, you'll still be missing 4 to 6 words. You'll need to find another way to make up for this gap.
I also dislike this method, as I explained above, but why should the book contain all 2048 words? I believe it should only contain the 12 that you 're using in your seed phrase. It's also obvious that you should mark a number near the word to indicate which position the word is. Because for example the fourth word could be on a later page than the ninth word etc.