The document lists 58 projects that use the PIC18F4550 microcontroller. Some of the projects include interfacing the microcontroller with LCD displays, sensors, motors, and communication modules. The microcontroller is popular among makers and engineers due to its features and ease of use. The projects cover a wide range of applications including temperature measurement systems, audio players, remote controls, and more. Code examples are provided in C language along with circuit diagrams for many of the projects.