There are many different ways of arranging the space in an office. Managerial styles and the culture of specific companies are important factors in how office space will ultimately be used. One example of diverging office layout philosophies concerns how many people will work within the same room. At one extreme, each individual worker might have their own room; at the other extreme, a large open plan office might see tens or hundreds of people working in the same room. Open-plan offices put multiple workers together in the same space, and some studies[which?] have shown that they can improve short-term productivity, i.e. within a single software project. At the same time, the loss of privacy and security can increase the incidence of theft and loss of company secrets.[citation needed] A type of compromise between open plan and individual rooms is provided by the cubicle desk, possibly made most famous by the Dilbert cartoon series, which solves visual privacy to some extent but often fails on acoustic separation and security. Most cubicles also require the occupant to sit with their back towards anyone who might be approaching. Workers in walled offices typically try to position their normal work seats and desks so that they can see someone entering, and if that goal is not feasible, some install tiny mirrors on things such as computer monitors.[not specific enough to verify]