A similar title, Quantum Computing for the Quantum Curious (by Ciaran Hughes et al.), is a fully Open Access publication available for free on SpringerLink and Internet Archive . Detailed Write-up & Core Topics

This is the "Wikipedia of textbooks." Their Quantum Chemistry section covers everything from the Schrödinger equation to molecular orbital theory in a modular, easy-to-read format.

While some specific textbooks are behind paywalls, several high-quality, comprehensive resources are available legally for free.

You don't need to spend a fortune to understand the building blocks of the universe. By leveraging , MIT’s OCW , and LibreTexts , you can build a world-class understanding of quantum chemistry and computing entirely for free.

To access these resources, you can try searching for the paper titles or authors on the platforms mentioned above.

Keep in mind that while these resources can provide valuable information, they might not be as comprehensive as a traditional textbook or a paid online course.

Introduces the five postulates of quantum mechanics, wave functions, and the Schrödinger equation in a way that relates directly to computational qubits.