Core Concepts

• Object Orientation: Objects, Messages, Methods, Classes
• Dynamic Typing, Static Typing
• Memory Management: retain, release, autorelease
• Allocation, Initialization, Deallocation
• Properties: Declaration, Implementation, Synthesis
• Protocols
• Fast Enumeration

Foundation Classes

• NSObject
• NSString
• NSArray
• NSDictionary
• NSSet
• NSNumber
• NSNull
• NSMutable*

Advanced Concepts

• Categories
• Exceptions
• Synchronized Threading
• Reflection: Selectors, Class Type, Objective-C Runtime