Published in 2017, “The first half of the book covers the theories that are most commonly taught in undergraduate programmes. The book then expands to present emerging approaches and offer wider perspectives."
Open textbook, 2016, "designed to be a ‘Day 0' introduction to International Relations. As a beginner's guide, it has organized into 2 parts (The Basics and Global Issues) and 18 chapters. PDF format.
A variety of open access and openly licensed textbooks on both general and specific international relations and foreign policy issues. Each book is free to download, PDF format.
OpenStax textbook, revised Feb. 2019, "designed to meet the scope and sequence requirements of the single-semester American Government course."
Library of Congress: Constitution Resources
Cornell Law School Constitution with Annotations
A Primer on Politics (Creative Commons)
Introduction to Political Science (Saylor Academy)
A survey course that introduces the student to the discipline's concepts, terminology, and methods and explores instances of applied political science through real world examples.
Open textbook adapted by T. M. Sell, past president of the PNW Political Science Association. Organized into 10 chapters.
Saylor course "will survey the different ways in which political scientists study the phenomena of politics and will deepen your understanding of political life as both a thinker and a citizen."
SBCTC open course, last updated in 2017. Replaces textbook with online, mostly free, resources: readings, videos, screencasts and more. Includes assessments, discussion questions, and quizzes.
Saylor course that "focuses on the formal, public sphere of politics and power relations through a systematic study and comparison of types of government and political systems." Organized into 7 units + student study guides.
3rd ed. (University of Oklahoma/Open Textbook Library)
CalPoly Professor John Korey offers a free web-based textbook on Research Methods in Political Science that includes links to statistical data to be used with SPSS.