This is not a paid post and I have no financial interest in the product. I am aware it had nothing to do with books but I feel it is a very important product which may save lives. I live in a great community but the homes are nearly identical in appearance. I’ve had service technicians drive by my home in the daylight and then drive by again. If we ever need a first responder to find our home, I do NOT want to depend on faulty GPS data. One of my neighbors found this product and I am delighted to have it. In a very insecure world, I feel a little more secure. This product is simply a lightbulb. It will strobe red, white, and blue when you call 911. This makes it easy for first responders to find your home. At $39.00 it is the least expensive peace of mind I’ve found. This link takes you to the company’s website to purchase. I reiterate I have no financial incentive to recommend this product...