Hi! Thanks for your attention. I am learning Objective-C from scratch(however I do know some C). I am using the Programming in Objective-C book and so far all is good, but there's something that has puzzled me since I started learning programming.... and it is.... what should I use for indenting? The examples in the book show 4 spaces indentation, so at first I thought... isn't pressing just tab easier? But then the indentations where too big... then I checked wikipedia and it says that using spaces or tab is a thing of preference? So far I have been pressing space 3 times for each indentation following the examples in the book... am I doing it right, isn't pressing space 3 times more cumbersome than pressing tab once? Should I stop worrying about this? Thanks again!