Expositio
Expositio is a free portfolio-type WordPress theme for photographers and designers. The horizontal layout of the Expositio theme is perfect for displaying visual materials like photography or art works.
Theme Details
Current Version:
2.0.1
Last Update:
April 01, 2014
Released:
June 19, 2011
Requirements:
WordPress 3.6+
Highlights
All Modern Browsers compatibility
Localization Support
Favicons ready
Clean Layout
Automatic image rescaling
Responsive Design
Secure and Valid CSS3 & HTML5 Code
2 Custom Menus locations
Unique Features

Responsiveness and Flexibility
The theme’s layout automatically fits on any screen resolution, responding to both desktops and mobile devices. The images stretch according to the screen size and the convenient mobile device menu won’t let you get lost. 
Big & Clean Layout
Your works and nothing else. The theme is designed so as not to distract the user from your beautiful works, the elements of the website take up very little space to highlight what’s important. 
Horizontal scrolling for a unique user experience
Unlike most Wordpress themes Expositio is using horizontal scrolling that better represents your content and makes a powerful impact on users. 
Easy to Use
No additional fields, plugins and complex operations. Simply create a standard gallery and add it to a post – that’s all it takes to set up your portfolio page. Videos
How to add portfolio item