15.5.2026 17.00

Join us for the book launch at Kalasataman Seripaja on May 15th, Friday, at 5PM. During the event, Tatu Tuominen, artist and a lecturer in the Printmaking Department at the Academy of Fine Arts, will give a talk on halftone as a concept and introduce its short history.

Screen Print Guide with Special Reference to Halftone Rasters and Transparencies by printmaker Jan Konsin, co-published with Longest Night, is the systematic and tactile review of halftone shapes, resolutions and angles — an indispensable resource for screen printers’ internationale.

With page after page of technical detail but not a showcase of flawless lines, the Screen Print Guide illustrates raster sizes and shapes, as well as how changes in dot size, spacing, form, and angle impact the final print. It also explains the moiré pattern — those wavy lines that appear when dots interact with the screen mesh — and how to avoid them. In addition, it showcases handmade originals —drawings created directly on transparent film using various media.

Additionally, the guide features a complete translation of Vujica Rešin Tucić’s Reform Grotesk, condensed into two pages. Originally published in Yugoslavia in 1983, these sound poems address the materiality of print, including rasters, fonts, type, and their politics.

The guide is produced entirely at the Kalasataman Seripaja workshop in Helsinki and the Longest Night workshop in Gothenburg in an edition of 150.

For more info and order visit Rab-Rab Press and Longest Night websites.