About this book:

*Smart Contracts in Practice* is a comprehensive technical guide to developing, testing, and deploying secure applications on the Ethereum Virtual Machine (EVM). The book transitions from foundational concepts—such as the mechanics of the EVM, gas economics, and Solidity syntax—to advanced architectural patterns. It emphasizes a security-first mindset, weaving threat modeling and defensive programming into every stage of the development lifecycle to mitigate risks like reentrancy, integer overflows, and access control vulnerabilities.

The middle section of the text focuses on the "building blocks" of the modern decentralized ecosystem. It provides deep dives into token standards (ERC-20, 721, and 1155), the implementation of decentralized finance (DeFi) primitives like Automated Market Makers and lending pools, and the integration of off-chain data via oracles. Significant attention is given to the complexity of upgradeable contracts using proxy patterns and the necessity of rigorous testing suites involving unit tests, fuzzing, and static analysis.

The final chapters address the operational realities of taking a project from a local development environment to a multi-chain production setting. It covers the nuances of Layer 2 scaling solutions, cross-chain bridging, and frontend integration. The book concludes by stressing that deployment is not the end of the process, detailing essential post-launch practices such as real-time monitoring, incident response planning, and navigating the evolving landscape of regulatory compliance to ensure long-term protocol resilience.

What You'll Find Inside:

• Practical guidance on setting up a secure, efficient development environment using tools like Hardhat, VS Code, and CI/CD pipelines for smart contract projects.
• In-depth coverage of Solidity language fundamentals and advanced patterns, including CEI, reentrancy guards, and storage layout optimization for gas efficiency.
• Comprehensive testing strategies: unit, integration, property-based, and fuzzing, with tools like Hardhat, Foundry, and Slither to ensure contract correctness and security.
• Detailed exploration of security best practices, threat modeling, common vulnerabilities (reentrancy, oracle manipulation, access control), and secure design patterns such as Ownable, RBAC, and proxy upgradeability.
• End-to-end workflow from token standards (ERC-20/721/1155) and DeFi building blocks to frontend integration, event indexing, multi-chain deployment, and operational safety monitoring.

Who's It For:

This book is ideal for software engineers entering the web3 space who need a hands‑on, production‑focused guide to Ethereum smart contract development, as well as experienced Solidity developers looking to harden their practices, adopt modern tooling, and build reliable, secure, and maintainable contracts on Ethereum and EVM‑compatible chains. It assumes basic programming familiarity but walks through everything from environment setup to deployment and monitoring, making it suitable for developers aiming to ship contracts with confidence in real‑world scenarios.