Open Resources for Community College Algebra (ORCCA) is an open-source, openly-licensed textbook package (eBook, print, and online homework) for basic and intermediate algebra. At Portland Community College, Part 1 is used in MTH 60, Part 2 is used in MTH 65, and Part 3 is used in MTH 95.

A three-volume textbook covering the history of Western Civilization from c. 8000 BCE to the recent past. Written to be compatible with most existing Western Civilization courses at American colleges and universities, Western Civilization: A Concise History rejects the triumphalist narrative of western progress while still providing an essential overview of the histories of the ancient Mediterranean, Europe, and the global connections of the modern era. The second edition was released in winter 2020 and further revisions are planned by the author.

Western Civilization: A Concise History​ is an Open Educational Resource textbook covering the history of Western Civilization from approximately 8,000 BCE to 2017 CE. It is available in three volumes covering the following time periods and topics:

Volume 1: from the origins of civilization in Mesopotamia c. 8,000 BCE through the early Middle Ages in Europe c. 1,000 CE. Volume 1 covers topics including Mesopotamia,Egypt, Persia, Greece, Rome, the Islamic caliphates, and the early European Middle Ages.
Volume 2: from the early Middle Ages to the French Revolution in 1789 CE. Volume 2covers topics including the High Middle Ages, the Renaissance, the European conquest of the Americas, the Reformation, the Scientific Revolution, and the Enlightenment.
Volume 3: from the Napoleonic era to the recent past. Volume 3 covers topics including the Industrial Revolution, the politics of Europe in the nineteenth century, modern European imperialism, the world wars, fascism, Nazism, and the Holocaust, the postwar era, the Cold War, and recent developments in economics and politics.

Western Civilization: A Concise History​ is an Open Educational Resource textbook covering the history of Western Civilization from approximately 8,000 BCE to 2017 CE. It is available in three volumes covering the following time periods and topics:

Volume 1: from the origins of civilization in Mesopotamia c. 8,000 BCE through the early Middle Ages in Europe c. 1,000 CE. Volume 1 covers topics including Mesopotamia,Egypt, Persia, Greece, Rome, the Islamic caliphates, and the early European Middle Ages.
Volume 2: from the early Middle Ages to the French Revolution in 1789 CE. Volume 2covers topics including the High Middle Ages, the Renaissance, the European conquest of the Americas, the Reformation, the Scientific Revolution, and the Enlightenment.
Volume 3: from the Napoleonic era to the recent past. Volume 3 covers topics including the Industrial Revolution, the politics of Europe in the nineteenth century, modern European imperialism, the world wars, fascism, Nazism, and the Holocaust, the postwar era, the Cold War, and recent developments in economics and politics.