Robert J. Sawyer

Often, Amazon's recommendations are reasonably useful, but this one isn't even close. Come on, guys! If the recommendation feature decays into nothing but noise, it's self-defeating. I'm sure someone said, "Hey, if we make the recommendations more general, we'll sell more books." Nope; if I get a few more like this, I'll just turn on an email filter that deletes Amazon recommendations unread:

Dear Amazon.ca Customer,

As someone who has purchased or rated "Deke!: An Autobiography" by Donald K Slayton or other books in the Engineering > Aeronautical Engineering category, you might like to know that "Multi-Sensor Data Fusion with MATLAB: Theory and Practice" is now available. You can order yours at a savings of 20% by following the link below.

Multi-Sensor Data Fusion with MATLAB: Theory and Practice by Jitendra R. Raol

List Price: CDN$ 160.95
Price: CDN$ 128.76
You Save: CDN$ 32.19
(20%)

For those who don't know, Deke Slayton was a key figure in the Mercury, Gemini, and Apollo programs.