The search for is more than an attempt to find a free textbook—it is a signal of intellectual curiosity about the roots of applied AI. This book teaches you to think like a knowledge engineer: to extract expertise from humans, codify it into logical structures, and build systems that reason transparently.
If you have the PDF, you can literally copy the source code examples and run them on a modern machine (since CLIPS is still maintained). This hands-on approach transforms abstract AI theory into tangible, working software. The search for is more than an attempt