This textbook serves as a comprehensive introduction to quantum technology for advanced undergraduate and beginning graduate students in physics and engineering. It provides readers with an in-depth overview of the wide range of quantum technology applications, from more well-known areas of quantum computing and quantum cryptography to lesser-known applications such as quantum communication, quantum-assisted measurement and sensing, and quantum microscopy. This book only assumes that the reader has had the standard courses in quantum mechanics and electromagnetism that are normally taken by physics majors during their sophomore or junior years.