From any open API Piwigo gallery, swiftly include your photos in Posts/Pages and/or add randomized thumbnails and menus in your sidebar.
On the one hand, PiwigoPress is a WordPress Sidebar Widget that links your blog to some public pictures of a Piwigo gallery. Thus, a Piwigo gallery with several public pictures in it is a prerequisite to make it working. But even if you don't have one yet, you can nonetheless give this plugin a try by using the Official Piwigo demonstration gallery before setting up your own gallery.
PiwigoPress generates several highly valuable links in sidebars of your WordPress blog, all of them being optional: a random thumbnail linking to the corresponding picture page, menus directing to all albums defined as public in the gallery, several additional links to most recent, most viewed, most commented pictures, and more.
On the other hand, by using a shortcode [PiwigoPress ...] you can add any public picture of a Piwigo gallery. Here again you should try even though you don't have yet your Piwigo Gallery. Have a look with [PiwigoPress id=72 url='http://piwigo.org/demo'] in a post or page.
Above all, PiwigoPress provides a shortcode generator. Each time you add some pictures to your gallery you will be able to add a post related to your last uploaded photos. So, your friends and family are going to like your photos and Search Engines are going reference your gallery with the refbacks provided by PiwigoPress.
When you've finished testing and want to create you own gallery, go to the Piwigo download page, where you'll find all the links you might need.
Try "NetInstall" first. If it fails, switch to the "Package" download and follow the full installation procedure. When ready, if you are a bit lost, just try Photos add page sheets (Web form, Applications, FTP + Synchronization) in your Piwigo gallery administration page.
Development of PiwigoPress is open to contributions, please use the github page for patches, bug reports, and issues.