Memories get classified in ways that seem at first blush straightforward. They can be short-term or long-term, semantic or episodic. Semantic memories consist of remembered facts not personally ...

When I was young, my mom had the foresight to ask my grandparents to fill out a memory book for me. Now an heirloom, the book captured the details of their childhoods and their lives — those precious ...

1. This is the big one—literally: It’s a 3,000-page monster, and even some of its sentences are gigantic. (One of them is almost as long as this entire article.) But its fans will tell you it’s the ...