Logo was critical in my understanding of sub routines and got me away from the dreaded GOTO command in BASIC, can't say I did much more than use it as an expens

Logo was critical in my understanding of sub routines and got me away from the dreaded GOTO command in BASIC, can't say I did much more than use it as an expensive Spirograph but it is certainly responsible for my ability to understand function calls and libraries and how use them in modern object orientated laguages. Just instinct for new programmers now a days, but in the 80s and early 90s it was a difficult concept for many to grasp.