
Dive into an AI journey—from foundational concepts and professional AI practice to autonomous agents.Two handbooks. Oneoperational journey.ROY-OS¹ — Learn AI.Build the conceptual and practical foundations for working effectively with AI.ROY-OS² — Build AgenticAI. Move from AI usage to intelligent systems, autonomous agents, workflows,tools, knowledge, and orchestration.From conceptualframeworks to autonomous agents—the ROY ™ (Roy-OS) Dual books provides aprogressive path from learning to building impact.

Are you ready for enormous portion of network automation? Grab this bundle and see how easy you can automate with Python and Ansible

From complete beginner to professional Android developer.The definitive five-volume Android Kotlin series covering everything from Kotlin fundamentals and Jetpack Compose to Clean Architecture, production deployment, monetization, Kotlin Multiplatform, and modern Android engineering. This is the only Android learning path you'll ever need.

Whether you're launching your first SaaS startup or scaling an established software company, this complete four-book collection gives you the practical knowledge to succeed at every stage. Learn how to acquire customers predictably, build a high-performing marketing engine, design software that scales effortlessly, and navigate complex European compliance requirements with confidence. Packed with proven frameworks, real-world case studies, actionable checklists, and implementation playbooks, this bundle is your comprehensive guide to building, growing, and operating a modern SaaS business.

Build practical skills across four of today's most important technologies with this complete programming bundle. Learn professional Python development, write faster SQL queries, master data science with R and unlock high-performance computing with Julia. Whether you're starting from scratch or expanding your expertise, these books provide clear guidance, hands-on examples and real-world knowledge you can use in your own projects.

Build full-stack web apps entirely in Rust, using WebAssembly and cloud-native delivery. This bundle's got everything you need to build fast, safe, modern web applications without ever leaving the Rust ecosystem, from language fundamentals to browser-native Wasm.


“The river carried stories farther than any ___.” What completes the thought is a token. What makes it relevant is context. What tests it is reasoning. What acts on it is an agent. What coordinates it is a system. What lies beyond is the frontier. Discover AI, bottom up.

AI正在重写价值规则。未来属于会驾驭智能的人。 这是一套面向技术人员、创业者和知识工作者的 AI 时代成长路线,覆盖从认知升级到能力重塑,再到 AI 生产力实践的完整路径。

Five books. Thousands of pages of practical engineering knowledge. Master technical leadership, software architecture, security engineering, platform engineering and modern DevOps with a collection built for engineers who want to design better systems, solve harder problems and grow into high-impact technical leaders.

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Master three of the world's most powerful programming languages with one complete collection. Whether you're writing your first line of code or building professional software, this bundle gives you the knowledge, practical experience and confidence to develop modern applications with C#, Java and C++. Learn through clear explanations, real-world examples and hands-on projects that take you from beginner to advanced, one step at a time.

The future of AI belongs to engineers who can build systems that are secure, reliable and production-ready. This four-book bundle takes you beyond prompt engineering into the disciplines that power modern AI applications, from defending against prompt injection and building robust AI infrastructure to engineering autonomous agents and graph-based systems that can reason, adapt and scale with confidence.

Most developers reach for Python when they need GPU power, but Rust also can deliver the same acceleration with memory safety and zero runtime overhead. This bundle takes you from CUDA fundamentals through Rust-CUDA, cuda-oxide, and RustaCUDA all the way to GPU-accelerated machine learning, entirely in the Rust ecosystem.