Ebook or audiobook?
Both fit in a pocket, both are private, and neither needs shelf space. Beyond that they make almost opposite trades — one is built for finding things, the other for getting through the material at all.
Four things people actually decide on
Where each edition is unambiguously better, and where it is not close.
Ebook, clearly
Search the full text for a phrase and land on it in seconds. Every highlight collects into one list — which after a month reads as a surprisingly accurate map of what you keep returning to. Audio gives you thirty chapter markers and your memory.
Audiobook, clearly
Concentration is one of the first things a difficult stretch takes. Six hours of narration asks far less of you than six hours of reading, and the audiobook is frequently the only edition that gets used in a bad month.
Audiobook, conditionally
You can run it at 1.25× or 1.5× and finish in four hours. You can also drift for ten minutes and not notice, which never happens with a page — an ebook stops the moment you stop.
Roughly equal
Neither shows a cover. An ebook is a screen among screens; an audiobook is headphones. The only edge is that nobody can glance at what you are reading over your shoulder in audio.
What each does to what you remember
Format changes retention in ways that are worth knowing before you spend anything.
Reading is self-paced by default. When a sentence lands, your eyes stop on it — you reread it without deciding to, and that pause is doing real work. This is why a passage that describes something you have never said out loud tends to stay with you longer in print.
Audio keeps moving unless you intervene. That is its weakness on the difficult passages and its strength on the flat ones — an ebook lets you stall on chapter three for a fortnight, where narration walks you past it and you find yourself at chapter nine.
Neither format helps if you do not stop to write anything. The chapters that ask you to name a pattern or draft a sentence need a notebook open, and this is where audio-only readers most often lose the value — listening feels like progress in a way that reading a prompt and skipping it does not.
The pairing that works is audio first, then print. One pass to hear the whole shape of it, then a slower pass with a pen for the chapters that turned out to be about you. If you are going to spend twice, spend it in that order.
Specifics
The details that decide it for most people.
How long does each take?
The audiobook runs six hours thirteen minutes unabridged — about four hours ten at 1.5×. Reading the ebook takes most people longer, five to eight hours, because reading is interrupted more.
Do the exercises survive in audio?
The prompts are spoken and you answer them in your own notebook, exactly as a print reader would. Nothing is skipped in the narration. What audio removes is the visual reminder that a prompt is sitting there unanswered.
Can I highlight in the audiobook?
You can bookmark a position, which is not the same thing. If collecting passages matters to you, that is a strong argument for the ebook.
Is the ebook readable on a phone?
Yes, with adjustable text size and a dark mode — which is relevant, since a good deal of BPD reading happens at 2am when the alternative is lying there.
Which is cheaper?
Usually the ebook. Audiobook pricing varies with credits and membership, so it is worth checking both listings rather than assuming.
Can I get them both?
Yes, and some listeners find whispersync-style switching useful. Check what the current listings offer at purchase — the arrangement changes.