We discuss the introduction of Fourier series as an immediate application of optimization of a function of more than one variable. Winkel, Brian. 2008. Fourier series optimization opportunity, International Journal of Mathematical Education in Science and Technology, 39(2): 276 - 284.All articles in this journal are FREEly available from the Mathematical Association of America member portal website at www.maa.org .We discuss the introduction of Fourier series as an immediate application of optim…