The document is an open textbook on project management skills for all careers. It was created by Project Management Open Resources and TAP-a-PM with contributions from various project management experts. The textbook aims to provide students with project management skills that can be applied to any chosen profession, and provide instructors with an open-licensed textbook they can freely modify and use. It includes 20 chapters covering all aspects of project management like the project life cycle, planning, scheduling, resources, risks, quality and communications. A sample 15-week syllabus is provided for using the textbook in a business school class.