In this chapter, we have reviewed, with a focus on our own efforts, the history, current and future perspectives on the problem of ferroelectric size effects. This past decade has seen an explosion of activity in the field of nanoscale ferroelectrics, with a broad spectrum of novel and artificial materials explored, and a huge potential for new discoveries and novel applications and devices. It is safe to say that although we are at present building a solid understanding of the fundamental driving force for ferroelectric size effects, we can expect some new and fascinating physics to manifest itself as we continue to push the envelope in this exciting and rapidly developing area.