I use this book literally every day in my research. It is never far from my writing desk. If you are a cognitive psychology student you should consider buying it while it's still in press, as it reviews pretty much everything you would want to know about human memory. On the other hand, it's highly technical, which means most people who don't plan to study cognitive psychology professionally should probably consider something easier to read, like Baddeley's recent "Human Memory" or Dan Schacter's "Searching for Memory".