LivingBook — books that talk back. Live: livingbook.masky.ai (web + iOS). Real authors' books become talking video agents that answer ONLY in the author's exact words — ask the Bible about today's headline and a narrator reads you the verse on video. Authors sign in with Masky (avatar = identity), claim books, upload podcasts/fan Q&A, or record spoken sessions gated by VoiceCert human verification, so agents can say "I spoke these words myself — attested." Readers get byte-exact quotes with provenance; a News tab gives each book's grounded take on live headlines; Talk lets you converse as your avatar (lands in the author's inbox, rendered as two-avatar video on their credits); a podcast generator stages your books discussing a story you pick. Self-evolving 3 ways: the KB grows from use (every Q&A + attested session re-ingested); the trend-watching marketing agent ships versioned strategy on Guild.ai with rollback + audit (v1→v2 live today); Replay QA simulates readers and feeds back fixes. Sponsors, all live: Actian VectorAI (verbatim KB, Docker/edge), Pioneer (grounded reasoning under a no-quote contract), Guild.ai (governed runtime), Band (real agent-to-agent podcast rooms), Senso (verified ingestion + GEO), VoiceCert (human proof), Masky (SSO + all video), AWS. Enforced, not promised: LLMs select and reason; byte-identical checks reject invented quotes. The repo ships its full human/AI session log (Open Session License).