Linkers and Loaders (The Morgan Kaufmann Series in Software Engineering and Programming)
"Linkers and Loaders" by John Levine.
I believe that's related to optimizer. But, for linker I suggest reading the points below since you showed curiosity about linkers. Reading these would help any C & C++ programmer. Knowing what linking actually means is an important knowledge.
For more info:
Note: This may not be what you were looking for but researching and learning what you're looking for by yourself will make what you learned last longer.
Take a look at link-time optimization. This is necessarily vendor dependent. It will also depend how you build your binaries. MS compilers (2005 onwards at least) provide something called Function Level Linking -- which is another way of stripping symbols you don't need. This post explains how the same can be achieved with GCC (this is old, GCC must've moved on but the content is relevant to your question).
Also take a look at the LLVM implementation (and the examples section).
I suggest you also take a look at Linkers and Loaders by John Levine -- an excellent read.