: The "Mastering Quantum Mechanics" series is available as a MOOC (Massive Open Online Course)
published by MIT Press is a commercial product, the underlying content is available for free through these official channels: MIT OpenCourseWare (OCW) Mastering Quantum Mechanics Zwiebach Pdf Free Download
: Introduces the wave function, Schrödinger equation, energy eigenstates, and spin one-half particles Amazon.com Part 2: Theory : The "Mastering Quantum Mechanics" series is available
: Prof. Zwiebach’s lectures are the basis for this book. You can find his full course materials, including lecture notes and assignments, for free on the MIT Quantum Physics I Quantum Physics II MITx Online including lecture notes and assignments