It is very easy and quickly to make them and they look so adorable! ALL MY PATTERNS ARE WRITTEN IN STANDARD AMERICAN TERMS! For your convenience there are step by step description and many photos. SIZING / FINISHED MEASUREMENTS Pattern is made for one size but you can change size of booties just by using different kind of yarn. I suggest to use sport-weight yarn for size 0-6 months and DK-weight for size 6-12 months.