A practical reading method
Decide Whether a Companion Book Adds Value
Write the exact unresolved question the companion would need to answer. Sample its table of contents and one relevant section for repetition and spoiler scope. Use it now, postpone it, or skip it, then record which main-book page prompted the decision.
Use this when companion material promises context but may repeat or spoil the main books. More material is not automatically more understanding. A named gap and a sample section reveal whether the companion is useful now.
Use case
When this method helps
Use this when companion material promises context but may repeat or spoil the main books.
More material is not automatically more understanding. A named gap and a sample section reveal whether the companion is useful now.
Method
Build the note
1. Write the exact unresolved question the companion would need to answer.
2. Sample its table of contents and one relevant section for repetition and spoiler scope.
3. Use it now, postpone it, or skip it, then record which main-book page prompted the decision.
Example
See the boundary in practice
A map guide resolves travel distances without revealing plot, while the character encyclopedia includes final-volume outcomes and is postponed.
Quality check
Before you trust the note
The companion should answer a current question with an acceptable spoiler boundary, not merely expand the collection.