Bookmark the crisis pages
The distress-tolerance section. Name the bookmark something you will recognise at speed — “bad night”, not “chapter 4”.
A guide is most useful in the ten minutes you least feel like reading. That only works if you can reach the right page in seconds.

About fifteen minutes. Do it while you are well, because the point is having it ready when you are not.
The distress-tolerance section. Name the bookmark something you will recognise at speed — “bad night”, not “chapter 4”.
One colour for recognition, one for actions to try. Two colours is the most any system survives; more gets abandoned.
If it takes four taps to reach, it will not get opened during a difficult moment.
Search for a term you will actually want — grounding, opposite action, favourite person — and confirm it lands somewhere useful. Do this before you need it.
Ten minutes reading back what you marked. This is where the pattern becomes visible, and it is the step people skip.
Four situations and the term that gets you to the right page fastest.
You want the physiological material — temperature, movement, breath. Not explanation.
The interrupt sequence rather than the theory of why loops happen.
The specific material on delaying the decision rather than the feeling.
The sequence for reopening rather than the section on why the conflict occurred.
Making the digital copy work as a tool rather than a book.
On most platforms, in some form. The route differs by retailer and app, and it is worth working out yours once so the list can live in your own notes alongside your log.
For some people, yes: print for working through, digital for searching. Only worth the second purchase if you have found yourself unable to locate something you knew was in there.
For terms, yes. For concepts you cannot name it is less useful — which is exactly why bookmarking the key sections in advance matters more than relying on search.
Highlights and position sync on the major platforms when signed into the same account. Worth confirming before you build a system on it.
No. Highlight only recognition and actions. A book where everything is marked carries the same information as one where nothing is.
Practical books get bought during a period of resolve and needed during a period of difficulty, and those two states have very different capacities. Anything requiring concentration, navigation or decision-making at the point of need will not be used, however good the material is.
That is the whole argument for the fifteen minutes of setup. Two bookmarks and a home-screen icon convert a book you would have to look for into something two taps away, and the difference between two taps and four is genuinely the difference between using it and not.
The same logic applies to the search test. Discovering that your search terms do not land anywhere useful is fine on a calm afternoon and useless at midnight. Do it once, in advance, and you know it works.
None of this makes the book more effective. It makes it more reachable, which for a reference you want during difficult hours is the constraint that actually binds.
The setup is done by the version of you who is coping, for the version who is not.