AutoCAD

[Plendakor]

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[LeSedna]

Why would it be essential ? Are you into architecture or mechanical engineering ?

My useful advice : stay cool when it doesn't do what you want, or creates bugs

EDIT : aaaah, Autocad electrical. I was using another thing in my electronics engineering school, but it must be the same story : take your time when you place objects and create links, it's way too easy to think something is connected when it's not for the software and then it's a pain in the ass to find the source of the problem.

 

[exoslime]

aaah, autocad.. i did use this programm like 15years ago, it was such a pita…
i´m so glad i changed my career!
sorry for beeing an offtopic ranter

 

[Red Phoenix]

What do you want to do with it? For creating schematics and layouts autocad is aweful.