Dear colleague, We invite everybody interested in image registration methods to participate in the new Automatic Non-rigid Histological Image Registration (ANHIR) challenge to be held at the ISBI 2019 conference in Venice in April 2019. The task consists of registering multi-stain histology images. Please see our webpage. https://anhir.grand-challenge.org Looking forward to your possible participation, Jiří Borovec Arrate Munoz-Barrutia Ignacio Arganda Jan Kybic