Write down the one thing from the session
Immediately afterwards, before it evaporates. One sentence, in your words rather than theirs. Sessions dissolve within about a day and this single note is what stops the week being disconnected from it.
Whether a book can substitute for therapy is answered elsewhere on this site. This page is narrower and more useful: the practical mechanics of running a book alongside sessions so that it feeds the work rather than running in parallel to it.
A repeatable cycle. Roughly twenty-five minutes of effort across seven days, which is a level that survives a bad week.
Immediately afterwards, before it evaporates. One sentence, in your words rather than theirs. Sessions dissolve within about a day and this single note is what stops the week being disconnected from it.
One chapter, chosen by what came up — not the next one in sequence. If the session was about a fight, that is chapter 16 or 22. If it was about shame, chapter 4. Sequence is for a first read; relevance is for this.
What happened, intensity out of ten, what you did. This survives bad days in a way that journalling does not, and it is the raw material that makes the next session concrete.
Two things you want to raise. Marked in advance, because the first five minutes of a session are otherwise spent deciding what to talk about, and that is expensive time.
Actually take it in. Reading two dated lines aloud is worth more than a reconstructed account of the fortnight, and most therapists will tell you the same.
Fill this in the evening before. It takes ten minutes and it changes what a session can cover.
The parts that make people quietly stop mentioning the book.
Yes, early. Reading in secret creates a parallel process — you arrive with vocabulary they have not seen you acquire, and it makes their job harder for no benefit.
Ask what specifically. A clinician's objection to a particular framing is usually informative and occasionally right. If they object to self-help generally, that is worth a conversation about what you should be doing between sessions instead, because something has to happen in those six days.
A paragraph, not a chapter. 'This describes something I have not managed to say' is one of the more productive session openers there is. Handing over a whole chapter transfers the reading onto them.
Say so. Therapy is not a syllabus with an order that must be respected, and 'I read about this and I think it is relevant now' is a reasonable thing to bring.
Generally yes — an attempted exercise is far more useful in a session than an untouched one, including when it went badly. A failed attempt tells both of you something a blank page does not.
Sometimes it surfaces material faster than the work can hold. That is worth saying out loud rather than managing alone — slowing the reading is a legitimate response and your therapist would rather know.