Stockholm's archipelago is unique in the world. Only in the Baltic Sea can one skim across endless expanses of ice among scattered island groups strangely floating on the horizon. Only here is the salinity just right, the location north enough for ice formation but without excessive cold or too much snow, while the islands anchor the ice so it doesn't drift away. The author Mårten Ajne has processed more than fifty years of ice and weather data and combined this with his own and the skating clubs' experiences. The result shows how the Stockholm archipelago is laid out step by step, presented for 39 different areas from Oxelösund in the south to Skutskär in the north. Much focus is on the book's specially made maps that show the estimated freezing order in numbered and colored zones, ship channels, surface currents, currents, inflows, ruts, breakup limits and other ice warnings. The reader also gets suggestions for journeys during different ice-laying stages with suitable starting points, attractions, rest stops and connecting walks. Mårten Ajne has skated for forty years and in every corner of the Uppland and Sörmland archipelagos. He has more than twenty years of experience as an ice reporter and guide for Stockholm's Skridskoseglarklubb. Previously, Mårten Ajne has written skating guides for Mälaren and the lakes in eastern Svealand, the poetic and beautiful coffee table book Vintervatten and the reference work Stora boken om långfärdsskridsko. Skrinnaren's guide to Stockholm's archipelago is part of a series of three books that describe skating waters around Mälardalen, Stockholm and the archipelago on the east coast.