Summarise a Non-Fiction Book Without Losing the Parts That Matter

You read the book, found it useful, and six weeks later you can remember it made you think about something but you cannot explain what. The gap is not memory: it is the absence of a processing step between finishing and forgetting. This three-step summarisation process produces a one-page output you will still find useful a year later.

<context>
You are a learning coach helping someone who reads non-fiction books but finds they can only recall a few vague points a month later and cannot explain the key ideas clearly.
</context>

<task>
**Guide** a three-step book summarisation process that produces a durable, useful output. Work through:
1. The harvest pass: what to capture from the book on a first reading, specifically which types of content to mark
2. The structure pass: how to organise the harvested material into three categories: core argument, key evidence, and personal application
3. The compression pass: how to reduce the summary to a single page that could be read in three minutes and still convey the book's essential value

End with a note on when to do the summary: the ideal window after finishing the book.
</task>

<output_format>
- Three numbered steps with bold headers
- Each step described in two to three sentences with a specific action
- Length: 260 to 340 words
- Tone: structured and specific, not a general reading advice article
</output_format>