This resource collection contains several subtopics; some will be more interesting to math/theory-oriented readers (i.e. sections 4 and 5), while others will be more interesting to engineers and builders (i.e. sections 1 and 2).

Each subtopic has a reading list (note that we don't expect you to read everything in any given reading list!) and one or more "quests" to help solidify your understanding.

**Section 1** focuses on real production use cases of ZK, including mixers/games/rollup on Ethereum, and ZCash / privacy coins.

**Section 2** focuses on resources for building decentralized applications with zkSNARKs.

**Section 3** covers trusted setup, a process needed to generate the public parameters of a zkSNARK securely. We include some resources on the underlying mathematics and some resources on actually participating in an MPC.

**Section 4** covers the mathematics behind zero knowledge cryptography, which has been studied for a few decades. A basic number theory background will be helpful for understanding this section.

**Section 5** touches on the mathematics behind zkSNARKs, a powerful new zero-knowledge gadget first invented in 2012. zkSNARKs first became viable in production in blockchain systems in the last few years; they are something of a "cryptographic nuke." Before approaching this track, you should feel comfortable with everything in Section 4.

Everyone looking to understand zero-knowledge cryptography should read this!

- Understanding ZKPs Through Illustrated Examples
- Zero Knowledge Proofs: An Illustrated Primer
- What are zk-SNARKs?
- Just the intro section, if youâ€™re looking for a high-level overview.

- ZKPs for Engineers: Introduction
- Privacy in Cryptocurrencies: An Overview
- Only briefly touches on ZKPs, but helpful context for why blockchains care about this kind of privacy tech!

- [ ] Play with this Interactive ZK 3-coloring demo (after reading the "illustrated primer" reading). Try to answer Exercises 1 and 2 at the bottom of the page.

This is probably the friendliest section for engineering-minded readers.