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I don't know of any books but having R-R I/O can be helpful for single supply operation. One example is for current measurement or control where one end of the sense resistor is tied to either ground or power. Having a R-R input stage makes the design a breeze.
In contrast to R-R inputs which are specified to work at the rail which is a black and white specification, a R-R output I would say is more of a marketing term. If any load what so ever is applied to the output it can not go rail to rail. So how close it gets to the rail with a specified load is the real specification and those specs vary all over the place.