**Preface to "Recent Progress in Lithium Niobate"**

LiNbO3 is an all-star material from both scientific and technological viewpoints and has been the subject of a great number of publications since its first preparation in 1937. The journal *Crystals* runs Special Issues to create collections of papers on specific topics. Recent Progress in Lithium Niobate' is the third of these Special Issues dealing with LiNbO3.

> **Robert A. Jackson, Zsuzsanna Szaller** *Editors*
