I am looking for resources (preferably a handbook) on advanced topics in algorithms (topics beyond what is covered in algorithms textbooks like CLRS and DPV).
The type of material that can be used for teaching a topics in algorithms course like Erik Demaine and David Karger's Advanced Algorithms course.
Resources that would give an overview of the field (like a handbook) are preferable, but more focused resources like Vijay Vazirani's "Approximation Algorithms" book are also fine.