Yahoo! Mail Conversations

One of the most requested features for Yahoo! Mail was email threading, or Conversations. I discovered and implemented several interaction models for Conversations that were previously undefined in Yahoo! Mail. I worked with designers, a prototyper, a researcher, and developers to create intuitive interfaces and unify a holistic Yahoo! Mail experience. The Conversations feature was released in late 2013 with the latest redesign.

 
Yahoo Mail Conversations, showing Inbox
Yahoo Mail Conversations, showing Inbox (as a row) and conversation pane
Yahoo Mail Conversations, showing Inbox (as a column) conversation pane
Yahoo Mail Conversations, showing conversation pane
Yahoo Mail Conversations, showing contextual menu on a conversation
Yahoo Mail Conversations, showing hover state on the conversation menu