Zefs Guide to Deep Learning by Roy Keyes is a concise, ~150-page book and the first in the Zefs Guides series, designed to provide a clear, conceptual introduction to deep learning for a wide audience, including job seekers, students, practitioners, and executives. Published via Leanpub and Zefs Publishing, it focuses on the essentials of deep learning without complex math or programming.

The book covers:
- Core Concepts: Explains machine learning, neural networks, and the history of deep learning, from early techniques to modern advancements.
- Key Techniques: Introduces common architectures like convolutional neural networks (CNNs) for computer vision and recurrent/Transformer models for natural language processing (NLP).
- Applications: Highlights real-world uses, such as image generation, language models (e.g., GPT-3), and advanced methods like diffusion models and Stable Diffusion.
- Practical Strategies: Discusses data augmentation, transfer learning, and techniques like dropout to prevent overfitting.

Enhanced with full-color illustrations and accompanied by digital flashcards (Anki, PDF, PNG formats), the guide emphasizes intuitive understanding over technical depth. Available in paperback, ebook, and bundled with flashcards, it serves as an accessible resource for building a strong foundation in deep learning. Further resources are available at zefsguides.com, with future series installments planned for topics like computer vision and Transformers.