Further Reading: DeFi Foundations

Essential Resources

DeFi Llama (https://defillama.com) — The most comprehensive free dashboard for DeFi TVL, revenue, volume, and protocol metrics across all chains. Start here for any data-driven DeFi analysis. Open-source methodology.
Dune Analytics (https://dune.com) — Community-built SQL dashboards querying on-chain data. Thousands of pre-built DeFi dashboards covering protocol usage, whale tracking, yield analysis, and more. Essential for anyone who wants to verify DeFi claims with primary data.
Token Terminal (https://tokenterminal.com) — Financial metrics for DeFi protocols presented in formats familiar to traditional finance analysts: revenue, P/E ratios, active users, developer activity.

Harvey, C. R., Ramachandran, A., & Santoro, J. (2021). DeFi and the Future of Finance. Wiley. The most rigorous academic treatment of DeFi. The authors (Duke University finance professors) present DeFi's innovations without hype while honestly addressing risks and limitations. Essential reading for anyone approaching DeFi from a finance background.
Schär, F. (2021). "Decentralized Finance: On Blockchain- and Smart Contract-Based Financial Markets." Federal Reserve Bank of St. Louis Review, 103(2), 153-174. An excellent overview of DeFi's architecture published by a central bank research division. Notable for its balanced treatment and clear explanation of the DeFi stack. Freely available online.
Aramonte, S., Huang, W., & Schrimpf, A. (2021). "DeFi risks and the decentralisation illusion." BIS Quarterly Review, December 2021. A skeptical but data-driven assessment from the Bank for International Settlements. Essential reading for understanding the "decentralisation illusion" — how DeFi's nominal decentralization masks operational centralization.
Gudgeon, L., Werner, S., Perez, D., & Knottenbelt, W. J. (2020). "DeFi Protocols for Loanable Funds: Interest Rates, Liquidity and Market Efficiency." Proceedings of the 2nd ACM Conference on Advances in Financial Technologies. A technical analysis of DeFi lending protocol mechanics. Requires comfort with mathematical notation but provides deep insight into how lending markets actually function.

Chainalysis. Geography of Cryptocurrency Report (annual). The best source for geographic DeFi adoption data. Essential for evaluating the "bank the unbanked" narrative with actual numbers.
a16z. State of Crypto Report (annual). Annual overview from Andreessen Horowitz. Well-produced with good data, but read with awareness that a16z is a major DeFi investor with incentives to present the ecosystem favorably.
Electric Capital. Developer Report (annual). Tracks developer activity across blockchain ecosystems. Useful for understanding which DeFi ecosystems are attracting talent.

Qin, K., Zhou, L., & Gervais, A. (2021). "Quantifying Blockchain Extractable Value: How dark is the forest?" IEEE S&P 2022. Examines the dark side of composability — how composable protocols create MEV extraction opportunities. Technical but essential for understanding composability's risks.
The original "Money Legos" post by Toby Shorin (2019, various online sources) — Coined the term and articulated why composability is DeFi's key differentiator. Short, accessible, and historically significant.

Stani Kulechov (Aave founder). Various interviews and writings on TVL's limitations. Kulechov has been one of the most articulate critics of TVL as a primary metric, despite leading one of the highest-TVL protocols.
DeFi Llama's methodology documentation (https://docs.llama.fi) — Understanding how TVL is actually calculated, including their approach to double-counting adjustments.

Qin, K., Zhou, L., Livshits, B., & Gervais, A. (2021). "Attacking the DeFi Ecosystem with Flash Loans for Fun and Profit." Financial Cryptography and Data Security 2021. The definitive academic treatment of flash loan attacks. Analyzes specific exploits and quantifies the economic impact.
Aave's flash loan documentation (https://docs.aave.com) — Technical documentation for implementing flash loans. Good starting point for understanding the mechanics.

Auer, R., Haslhofer, B., Kitzler, S., Mundt, P., & Victor, F. (2023). "The Technology of Decentralized Finance (DeFi)." BIS Working Papers No. 1066. Examines DeFi's potential and limitations for financial inclusion with empirical data.
World Bank. Global Findex Database (2021, updated periodically). The authoritative source on financial inclusion data globally. Essential context for evaluating DeFi's "bank the unbanked" claims.
Goldfinch Protocol documentation and community resources (https://docs.goldfinch.finance) — Case study in attempting to bridge DeFi capital with real-world lending in developing countries.

Rekt News (https://rekt.news) — Post-mortem analyses of DeFi exploits, written with technical rigor and sardonic wit. The single best resource for understanding what goes wrong in DeFi and why.
Trail of Bits, OpenZeppelin, and Consensys Diligence audit reports — Major smart contract auditing firms publish many of their audit reports. Reading audit reports for protocols you use is one of the most direct ways to understand smart contract risk.

Kistner, M. "Ethereum is game-changing technology, literally." (2017, Medium). One of the earliest articulations of DeFi's thesis from a founder of Synthetix.
Camila Russo. The Infinite Machine (2020). History of Ethereum told as narrative. Provides essential context for understanding the culture and motivations of the DeFi ecosystem's foundational community.
Various "DeFi Summer" retrospectives by Bankless, The Defiant, and Delphi Digital — First-person accounts and analyses of the 2020 yield farming explosion from people who lived through it.

Ethereum testnets (Sepolia, Holesky): Practice DeFi interactions without risking real money. Most major protocols have testnet deployments.
Tenderly (https://tenderly.co) — Transaction simulation and debugging tool. Lets you fork mainnet and simulate DeFi transactions without executing them.
DeFi Llama API (https://defillama.com/docs/api) — Free, no-API-key-required access to TVL and protocol data. Used in this chapter's Python exercises.
Etherscan (https://etherscan.io) — Block explorer for reading smart contracts, tracing transactions, and verifying on-chain claims.

Bankless — Long-form podcast covering DeFi developments. Pro-DeFi editorial stance, but high-quality guests and technical depth.
The Defiant — Newsletter and media platform covering DeFi. More balanced editorial stance than most crypto media.
Unchained (Laura Shin) — Podcast that regularly features DeFi founders, regulators, and researchers. Good for hearing multiple perspectives.
Week in Ethereum News — Weekly newsletter covering Ethereum ecosystem developments including DeFi. Factual, low-opinion, comprehensive.