Which temple style holds glasses primarily by applying pressure against the side of the head?

The library temple is characterized by its design to hold eyeglasses predominantly through pressure against the side of the head. This style features a straight and elongated temple that extends back and wraps slightly around the ear, which helps maintain a secure fit. The pressure from the temple against the head is what helps stabilize the glasses, making it a suitable option for everyday wear where consistent security is required.

In contrast, the skull temple is designed to follow the contour of the head and often has an angle that allows it to sit comfortably behind the ear, providing support but not relying heavily on pressure against the side of the head. Convertible temples can adjust in style and configuration, while riding bow temples are designed primarily for sports and activities, providing a more secure fit by wrapping around the ears more fully. These attributes differentiate them from the library temple's functionality.