Prerequisites

The short answer: there are no formal prerequisites for this book. The course is designed for first- and second-year college students, AP Government high-school students, and adult readers. You can begin with the background you already have.

The longer answer follows.

What you do not need

No prior political science. This is the introductory course. Concepts like federalism, separation of powers, judicial review, polarization, and party realignment are defined when they first appear and revisited as they recur. The glossary in the back of the book defines every technical term once and indicates the chapter of first use.

No US history beyond what you absorbed by existing in America. The book references the major events — the Founding, the Civil War, Reconstruction, the New Deal, the civil-rights era, the modern partisan realignment — but does not require a prior course. Where the historical context matters for understanding a current institution, the book provides the context. International students who have followed American politics from outside, or who have not, can both succeed; the book starts where the reader is.

No statistics. Data literacy — reading polls, election results, demographic data, and campaign-finance numbers — is taught in context. There is no formal statistical machinery beyond percentages, margins of error explained intuitively, and the difference between "correlation" and "causation" explained by example. Two appendices function as reference tools when you need them: Appendix F (How to Read a Poll) covers margin of error, weighting, house effects, the difference between a likely-voter screen and a registered-voter screen, and how to recognize a partisan poll; Appendix G (How to Read Election Results) covers turnout, swing, demographic crosstabs, and electoral-college math.

No partisan commitment. No prior political position is required or assumed. The book is written for readers across the political spectrum and is structured so that no chapter requires the reader to share any particular partisan affiliation, philosophy, or set of policy preferences. If you are a strong partisan, the book will sometimes ask you to encounter the strongest version of an argument you disagree with. This is the assignment, not an accident. It is also useful preparation for arguing well — you cannot defeat the strongest version of an opposing argument until you have understood it.

No mathematics beyond basic arithmetic. Percentages, ratios, totals. Election results are stated in numbers; budget figures in billions and trillions; campaign spending in millions. If you can read a sports score and a checking-account balance, you have enough math.

No prior knowledge of legal terminology. Constitutional and statutory language is paired with plain-English translation throughout. By Chapter 12, where the federal courts are introduced, you will be reading constitutional text and recognizing court opinions; that is a skill the book builds in you, not one it expects you to bring.

What helps but is not required

A rough familiarity with how US elections look — that there is a presidential election every four years, that members of the House of Representatives are elected every two years, that there are two senators per state, that the Supreme Court has nine justices appointed for life — will save you a few minutes of orientation in Chapters 7–9. If you don't have it, you will pick it up in those chapters.

Awareness that the US has 50 states, each with its own state government, court system, and political culture — and that "the federal government" refers to the national government in Washington while "state government" refers to each of the 50 capitals — saves a small amount of confusion in Chapters 4 and 15.

If you have followed American politics actively (reading news, watching debates, voting, paying attention to political controversies), you will recognize many of the running examples. If you haven't, the book provides enough context that the examples will land. International students sometimes report that the book is easier for them than for American students, because they have less prior framing to unlearn.

A short reading-readiness self-check

This is diagnostic, not gating. The book starts where you are. But knowing which questions you can already answer, and which you cannot, will help you calibrate how much new ground each chapter covers.

For each question, answer mentally: Yes, I know this; I have a vague sense; No, I would have to look it up. There are no wrong answers.

1. Can you name the two senators from your state?
2. Can you name your representative in the US House?
3. Can you describe in one sentence what a filibuster is?
4. Can you describe in one sentence what judicial review is?
5. Can you name three Supreme Court cases you have heard of?
6. Can you describe in one sentence what gerrymandering is?
7. Can you describe in one sentence what a primary election is and how it differs from a general election?

If you answered Yes to most of these, you can move quickly through Chapters 1–3 and slow down at Chapter 4.

If you answered I have a vague sense to most, you are exactly the reader the book is written for. Read every chapter; the cumulative picture is the point.

If you answered No to most, you are also exactly a reader the book is written for. The first three chapters give you the orientation. Plan a slightly slower pace through Part I; it pays off.

The point of the self-check is not to assess your readiness. It is to mark a baseline. Re-take it after Chapter 6 (the end of Part I), and again after Chapter 16 (the end of Part II). If your honest answers have moved from No to I have a vague sense and from I have a vague sense to Yes, the book is working.

Tools you will want

• A way to look up your congressional district. govtrack.us and house.gov both have district lookups. The Democracy Audit progressive project starts with picking a district in Chapter 1.
• A note-keeping system. A document, a notebook, anything. The Democracy Audit accumulates across all 40 chapters; you will want a single place to keep your district's data.
• Access to a computer with internet. The book references real databases (FEC, OpenSecrets, Census, GovTrack) that you will look at directly in the exercises.

You do not need a textbook from the library. You do not need a particular software package. You do not need to subscribe to any news outlet. The book and the public databases are sufficient.

A note on starting point

This book is designed to meet the reader where they are. If you arrive having read the Federalist Papers in high school and followed Supreme Court terms term-by-term — read the whole book; you will find depths in the material that are easy to miss when the basics are familiar. If you arrive having barely thought about American politics, never having voted, and not entirely sure what the difference is between the House and the Senate — read the whole book; you will be a different reader at the end. The book has been written for both of you.