Ion trapping is a technique used to capture and manipulate individual ions using electromagnetic fields. Typically, a stable region is created where the ions can be controlled. The ions are usually isolated in a high vacuum environment to minimize interactions with their surroundings. This process allows us to cool the Ions to very low temperatures and control their motion with remarkable precision. The three most common designs of the ion trap are the Penning trap (uses a quadrupole electric field and an axial magnetic field), linear trap (uses two-dimensional rf quadrupole fields), and Paul trap (uses three-dimensional quadrupole fields). Ion trapping has shown great promise in various areas, including quantum computing, quantum simulation, and quantum metrology, and continues to be an active field of research and technological development.