|  | Welcome to guidebook, a website dedicated to preserving and showcasing Graphical User Interfaces, as well as various materials related to them.
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| | Site last updated on 6th October 2006:
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| | Three of 14 posters for Macintosh’s 20th birthday present its groundbreaking GUI:
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| | | To prototype and test a Workspace Shell GUI for OS/2 2.0, IBM used the legendary, heavily object-oriented SmallTalk V/PM. |
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| |  | Admit it, you probably never used nor seen one. The first, 1985’s version of freshly-renamed Interface Manager was ugly, non-functional (didn’t even have overlapping windows!) and never gained much market share. It took Windows another five years to become widely recognized.
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| |  | The help system for Apple II’s GS/OS 5 was so simple – seven windows in total – that we can reproduce it here in its entirety. As GUIs grew more and more complicated, so did the help windows, evolving into huge, slow, Internet-driven monstrosities. Check it out yourself.
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| |  | The icon of iCal (calendar application in Mac OS X 10.3 Panther) is a nice and still rare example of those dynamic icons that change their appearance based on context. In this case, the program icon doubles as a current day and month indicator.
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