Error: Craft\EntryModel and its behaviors do not have a method or closure named "Case Studies"
Welcome Ross! If you have 'Case Studies' as a Section and not a field, try changing your syntax to:

{% for entry in craft.entries.section('caseStudies').find() %}

    {{ entry.title }}
    ...

{% endfor %}




Here's an updated example, showing an additional custom field...

{# Find all Entries in the Case Study section #}
{% for entry in craft.entries.section('caseStudies').find() %}

    {# Display the entry's Title #}
    &lt;h2&gt;{{ entry.title }}&lt;/h2&gt;

    {# Display the contents of the Intro Summary (plain text field) #}
    &lt;p&gt;{{ entry.introSummary }}&lt;/p&gt;

{% endfor %}