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    <ol> <li><code>tide.tideSummaryStats</code> returns an array. </li> <li><code>tide.tideInfo</code> returns an array.</li> </ol> <p>So you can't do <code>-valueForKeyPath:</code> all the way.</p> <hr> <p>Also, this is incorrect: <code>[dictionary valueForKeyPath:...];</code><br> it should be : <code>[json valueForKeyPath:...];</code></p> <p>because <code>json</code> is the name of the <code>NSDictionary</code> variable passed (<em>not <code>dictionary</code></em>)</p> <hr> <p>Try this (<em>not sure</em>):</p> <pre><code>-(id)initWithDict:(NSDictionary *)json { self = [super init]; if(self) { NSArray *arrOfTideSummaryStats = [json valueForKeyPath:@"tide.tideSummaryStats"]; NSDictionary *dctOfTideSummaryStats = [arrOfTideSummaryStats objectAtIndex:0]; //since self.maxheight and self.minheight are NSString objects and //the original keys "minheight" &amp; "maxheight" return float values, do: self.maxheight = [NSString stringWithFormat:@"%f", [dctOfTideSummaryStats valueForKey: @"maxheight"]]; self.minheight = [NSString stringWithFormat:@"%f", [dctOfTideSummaryStats valueForKey: @"minheight"]]; /*============================================================*/ NSArray *arrOfTideInfo = [json valueForKeyPath:@"tide.tideInfo"]; NSDictionary *dctOfTideInfo = [arrOfTideInfo objectAtIndex:0]; self.tideSite = [dctOfTideInfo valueForKey:@"tideSite"]; } return self; } </code></pre> <hr> <p>Similar Questions:</p> <ul> <li><a href="https://stackoverflow.com/questions/3165290/how-to-parsing-json-object-in-iphone-sdk-xcode-using-json-framework">How to parsing JSON object in iPhone SDK (XCode) using JSON-Framework</a></li> <li><a href="https://stackoverflow.com/questions/1461126/getting-array-elements-with-valueforkeypath">Getting array elements with valueForKeyPath</a></li> <li><a href="https://stackoverflow.com/questions/12054846/keypath-for-first-element-in-embedded-nsarray">Keypath for first element in embedded NSArray</a></li> </ul>
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    1. COAs more items grow, I would organize them in here, or is it best practice to continue breaking them up? (or does it depend more on the case and the type of data?) If you see ```summaryStats``` is an array with days ill want to display.
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      1. USCoughlin
    2. CO@Coughlin : depends on the case but basically, if you had only nested dictionaries then KVC is of great help but when there's an array (_with multiple indexes_) in between, then KVC doesn't work so well. [check: link](http://www.cocoabuilder.com/archive/cocoa/307498-is-it-possible-to-traverse-dictionaries-and-arrays-using-kvc.html) (it's quite old, 2011 and i am not sure if things are any different now)
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    3. CO@Coughlin : added one more link in the answer that may be of some help to you. [check: link](http://stackoverflow.com/questions/12054846/keypath-for-first-element-in-embedded-nsarray)
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