Both the formats have their pros and cons. A one-column resume is more ATS-friendly (which we’ll get to soon), suffers less distortion when converted into a PDF, and is considered the more acceptable format. However, it is not optimized for space, contains long sentences, and is not appealing to the eye. The two-column resume is newer and more reading-friendly. It lets you separate the less space-consuming sections such as Education and Skills from the more verbose Experience sections. However, it is less likely to be ATS compatible.