Building Cocoa Applications: A Step-by-Step Guide 
by Michael Mahoney, Simson Garfinkel

The following errata were corrected in the 3/04 reprint:

Here's a key to the markup:
	[page-number]: serious technical mistake
	{page-number}: minor technical mistake
	<page-number>: important language/formatting problem
	(page-number): language change or minor formatting problem



(233)  Top of page, Step 2, referring to Controller.h;
@interface Controller:Object
{
...
}

NOW READS:
@interface Controller:NSObject
{
...
}



(307)  Step 22;
"disclusure triangle"

NOW READS: 
"disclosure triangle"



(368)  Source codes under 3. and 4.;
3.
 - (init) 

NOW READS:
 - (id)init

4. All import sentences ARE NOW enclosed with "".
   For example, not #import RTF.h but #import "RTF.h"