How to prepare for the German C1 proficiency exam

Preparing for the Goethe C1 Zertifikat
by Matt
https://postcardsfrommatt.wordpress.com/2015/01/19/preparing-for-the-goethe-c1-zertifikat/

How to prepare for an advanced language exam. Lessons from my Goethe-Institut C1 success
by Gareth Popkins
https://howtogetfluent.com/how-to-prepare-for-an-advanced-language-exam-lessons-from-my-goethe-institute-c1-success/

How I passed German Goethe C1 German exam
by Sansar Choinyambuu
[Updated link:
https://medium.com/@sansar.choinyambuu/how-i-passed-german-goethe-c1-german-exam-7912a193f83e]
http://chsansar.blogspot.com/2015/05/how-i-prepared-for-goethe-c1-german.html