A marketing plan is a road map that a company uses to accomplished a focused marketing goal. Several objectives are contained within a marketing plan that include goals for personnel utilization and ...

Management by objective, or MBO, is a concept postulated by Peter Drucker in his 1954 book, "The Practice of Management." The principle provides a means of focusing all who are involved with a work ...

Binoculars have three main parts: the objective lens, prisms and the ocular lens. Binocular lenses are thicker in the middle and taper out to a thinner edge, which bends light toward the middle. These ...

THIS is a useful book, not only for beginners in the use of the camera, but for many photographic workers who have never studied the optics of lenses. The elementary treatment of lenses is far in ...