Knowledge System

Product List
  • Virtual Voice Sample

    $12.99 or free with 30-day trial

  • Preview
    • The Hidden Cause of America's Broken Education System--and How to Fix it
    • By: Natalie Wexler
    • Narrated by: Natalie Wexler
    • Length: 9 hrs and 15 mins
    • Release date: 08-06-19
    • Language: English
    • 737 ratings
    • “Essential reading for teachers, education administrators, and policymakers alike.” —STARRED Library Journal The untold story of the root cause of America's education crisis It was only after years within the education reform movement that Natalie Wexler stumbled across a hidden...

    $18.00 or free with 30-day trial

  • Virtual Voice Sample
    • Complete Diy Guide + VIDEO COURSE to Master Any Type of Heating, Ventilation and Air Conditioning System. Ideal for Aspiring HVAC Pros Without Any Prior Knowledge
    • By: Jason Mitchell
    • Narrated by: Virtual Voice
    • Length: 4 hrs and 29 mins
    • Release date: 04-08-25
    • Language: English
    • Not rated yet
    • BONUS: Complete video course FREE GIFT: An ebook by the same author Do you want to learn how to understand and optimize your HVAC system to ...

    $11.99 or free with 30-day trial

  • Virtual Voice Sample
    • By: Ken Huang
    • Narrated by: Virtual Voice
    • Length: 18 hrs and 52 mins
    • Release date: 09-13-26
    • Language: English
    • Not rated yet
    • Design the topology. Don't inherit it. Most agent systems get their shape by accident — a prompt, then a tool, then a retry, then a second agent ...

    $14.99 or free with 30-day trial

  • Virtual Voice Sample
    • Five Pillars for the Runtime Layer of AI-Native Systems
    • By: VU TRI CONG MOBILUCK - CODE247.AI
    • Narrated by: Virtual Voice
    • Length: 4 hrs and 25 mins
    • Release date: 08-06-26
    • Language: English
    • Not rated yet
    • Your AI assistant forgets everything. Every conversation, every preference, every decision — gone the instant the call ends. Large language ...

    $3.99 or free with 30-day trial

  • Virtual Voice Sample

    $9.99 or free with 30-day trial

  • Preview
    • How to Rebuild Our World from Scratch
    • By: Lewis Dartnell
    • Narrated by: John Lee
    • Length: 8 hrs and 58 mins
    • Release date: 04-17-14
    • Language: English
    • 541 ratings
    • Most of us are ignorant about the fundamental principles of the civilization that supports us, happily utilizing the latest - or even the most basic - technology without having the slightest idea of why it works or how it came to be. If you had to go back to absolute basics, like some sort of...

    $17.12 or free with 30-day trial

  • Preview
    • General Knowledge
    • By: iMinds
    • Narrated by: Todd MacDonald
    • Length: 5 mins
    • Release date: 11-24-09
    • Language: English
    • 24 ratings
    • Learn about the development of the Jury System with iMindsJNR audio learning series for younger minds.....

    $3.80 or free with 30-day trial

  • Virtual Voice Sample
    • Ancient Occult Knowledge, Hermetic Mysteries, and Forbidden Teachings
    • By: Etzel Edelweiss
    • Narrated by: Virtual Voice
    • Length: 9 hrs and 46 mins
    • Release date: 01-11-26
    • Language: English
    • 1 rating
    • This book was never meant to be published. It was meant to be remembered. The Black Codex is a forbidden manuscript—part gnosis, part ...

    $4.99 or free with 30-day trial

  • Preview
    • Why Atheists Need God to Make Their Case
    • By: Frank Turek
    • Narrated by: John McLain
    • Length: 8 hrs and 28 mins
    • Release date: 01-01-15
    • Language: English
    • 1,055 ratings
    • What if your best reasons to doubt God prove that He exists? In an engaging and memorable way, Stealing from God shows how many atheistic arguments, instead of disproving God, reveal that He actually exists...

    $19.01 or free with 30-day trial

  • Virtual Voice Sample

    $3.99 or free with 30-day trial

  • Preview

    $18.82 or free with 30-day trial

  • Preview
    • By: Martha Grimes
    • Narrated by: Steve West
    • Series: A Richard Jury Novel, Book 24
    • Length: 12 hrs and 3 mins
    • Release date: 04-03-18
    • Language: English
    • 574 ratings
    • Robbie Parsons is one of London's finest, a black cab driver who knows the city by heart. In his backseat is a man with a gun in his hand - a man who brazenly committed a crime in front of the Artemis Club then jumped in and ordered Parsons to drive. As the criminal eventually escapes to Nairobi...

    $21.84 or free with 30-day trial

  • Virtual Voice Sample
    • Analysing & Designing RAG Systems for AI-Native Software — From Chunk to Agent
    • By: VŨ TRÍ CÔNG MOBILUCK - CODE247.AI
    • Narrated by: Virtual Voice
    • Length: 9 hrs and 10 mins
    • Release date: 08-06-26
    • Language: English
    • Not rated yet
    • Your LLM is brilliant — until you ask it about YOUR data. It hallucinates. Its knowledge is frozen in the past. It has never seen your company's ...

    $3.99 or free with 30-day trial

  • Preview
    • By: Charles F. Haanel
    • Narrated by: James Boles
    • Length: 7 hrs and 6 mins
    • Release date: 02-05-08
    • Language: English
    • 158 ratings
    • Charles F. Haanel’s groundbreaking and timeless work returns in this modern interpretation. Reconnect with your utmost potential and discover that you hold the key to manifesting the life of your dreams! Learn how to unlock thought as creative energy and power, and become the “Master Key”...

    $14.99 or free with 30-day trial

  • Virtual Voice Sample
    • Designing Knowledge Retrieval on Graphs — From Core Concepts to Twelve Real-World Use Cases
    • By: VU TRI CONG MOBILUCK-CODE247.AI
    • Narrated by: Virtual Voice
    • Length: 12 hrs and 52 mins
    • Release date: 08-22-26
    • Language: English
    • Not rated yet
    • Your search box can find documents. It cannot answer questions. Somewhere in your organization there is a question no single passage contains: “...

    $3.99 or free with 30-day trial

  • Virtual Voice Sample
    • The AI-Native Quartet: RAG · Knowledge Graphs · Context & Memory · Planning
    • By: VU TRI CONG MOBILUC - CODE247.AI
    • Narrated by: Virtual Voice
    • Length: 6 hrs and 52 mins
    • Release date: 08-06-26
    • Language: English
    • 1 rating
    • A single-turn model answers. An agent with a plan finishes the work. Ask a language model to "prepare the Q3 financial report and compare it with ...

    $3.99 or free with 30-day trial

  • Virtual Voice Sample
    • Building AI Workflows & Agent Teams That Scale
    • By: Kyle J Green
    • Narrated by: Virtual Voice
    • Length: 1 hr and 11 mins
    • Release date: 06-18-26
    • Language: English
    • Not rated yet
    • You're using AI wrong. Not because you're incompetent. Because you're thinking in single prompts when you should be thinking in systems. THE ...

    $13.99 or free with 30-day trial

  • Virtual Voice Sample
    • The Essential Guide to Machine Learning, Generative AI, Agents, Business Value, and Responsible Use
    • By: Finn S. Moriarty
    • Narrated by: Virtual Voice
    • Length: 3 hrs and 54 mins
    • Release date: 08-15-26
    • Language: English
    • Not rated yet
    • AI is everywhere at work. Judgment is still scarce. Artificial intelligence is moving from a specialist technology into the everyday operating ...

    $14.99 or free with 30-day trial

  • Virtual Voice Sample
    • How Business Leaders Turn Human Expertise Into Institutional Capability
    • By: Alex Tran
    • Narrated by: Virtual Voice
    • Length: 5 hrs and 46 mins
    • Release date: 08-31-26
    • Language: English
    • Not rated yet
    • Your company has more expertise than your documents can capture. The problem is that much of it is still trapped inside people. Every business has ...

    $11.99 or free with 30-day trial