▁His ▁son ▁from ▁that ▁marriage , ▁ ▁became ▁a ▁well - known ▁professional ▁motor cycle ▁rac er . ▁During ▁the ▁years ▁ 1 9 1 7 ▁and ▁ 1 9 1 8 ▁in ▁Ess en , ▁he ▁taught ▁the ▁young ▁Josef ▁Al bers ▁his ▁st ained - glass ▁making ▁techniques , ▁which ▁impact ed ▁greatly ▁Al bers ’ ▁o e uv re . ▁ ▁After ▁a ▁short ▁stay ▁in ▁Über lingen ▁from ▁ 1 9 1 9 ▁to ▁ 1 9 2 0 , ▁he ▁moved ▁to ▁Mun ich ▁where ▁he ▁taught ▁glass - p ain ting ▁and ▁monument al ▁art , ▁then ▁transferred ▁to ▁the ▁Kunst ak adem ie ▁Düsseldorf , ▁followed ▁by ▁the ▁C ologne ▁Art ▁and ▁C raft ▁School s ▁in ▁ 1 9 2 6 . ▁He ▁remained ▁there ▁until ▁his ▁death . ▁During ▁his ▁last ▁de cade , ▁he ▁focused ▁on ▁m osa ics ▁and ▁st ained - glass . ▁ ▁Selected ▁works ▁ ▁References ▁ ▁Further ▁reading ▁ ▁Christian e ▁He iser , ▁Kunst - Rel ig ion - G es ellschaft . ▁Das ▁Werk ▁von ▁Johan ▁Th orn ▁P rik ker ▁zwischen ▁ 1 8 9 0 ▁und ▁ 1 9 1 2 . ▁V om ▁nieder länd ischen ▁Symbol ismus ▁zum ▁Deutschen ▁Werk bund , ▁Doctor al ▁th esis , ▁University ▁of ▁G ron ingen , ▁ 2 0 0 8 ▁▁ ▁Christian e ▁He iser , ▁M ien ke ▁Simon ▁Thomas ▁and ▁Barbara ▁T il , ▁Johan ▁Th orn ▁P rik ker : ▁De