FreeCAD 0.21: A Power Guide for Beginners and Intermediate Users textbook has been designed for instructor-led courses as well as self-paced learning. It is intended to help engineers and designers interested in learning FreeCAD to create 3D mechanical designs. This textbook is an excellent guide for new FreeCAD users and a great teaching aid for classroom training. It consists of 10 chapters and a total of 452 pages covering major workbenches of FreeCAD such as Sketcher, Part Design, A2plus, and TechDraw. The textbook teaches you to use FreeCAD mechanical design software for building parametric 3D solid components and assemblies as well as creating 2D drawings. This textbook not only focuses on the usage of the tools/commands of FreeCAD but also the concept of design. Every chapter in this textbook contains tutorials that provide users with step-by-step instructions for creating mechanical designs and drawings with ease. Moreover, every chapter ends with hands-on test drives that allow users to experience the user-friendly and powerful technical capabilities of FreeCAD. Main Features of the Textbook Comprehensive coverage of tools Step-by-step real-world tutorials with every chapter Hands-on test drives to enhance the skills at the end of every chapter Additional notes and tips Customized content for faculty (PowerPoint Presentations) Free learning resources for faculty and students Additional student and faculty projects Technical support for the book by contacting [email protected]