North of the Malay peninsula, the Chinese manuscripts mention a short dark-skinned people who fled southwards. Current day Philippines is dominated by Malay groups. However, following the path suggested by the Chinese, there are several short dark-skinned tribes dotted around the Philippines. I have just returned from performing fieldwork with one of those tribes and we can realistically establish that they are genetically non-viable, or face imminent genetic extinction.
Similarly, their culture faces erosion from contact with government agencies, NGOs and intruding mechanised territory. However, some mixed offspring choose to continue verbal traditions. When I say some, I confirmed only one practising male and less than 20 followers... but anyway, the migration of culture is at least as interesting as the migration of DNA! :)
The Germanic migrations interest me a lot, probably since I'm a fan of Germanic languages and their histories.
Along the coastline of sub-saharan Africa is a group of people ancestrally known as the ''Bantus'', meaning people! They have criss-crossed most of the lower half of Africa for so many centuries and subsequently shaped and re-shaped the culture and people of these regions. Yet it is the story of their migrations that fascinate me. Always in search for fertile pastures and wildlife. So they absorbed peoples of different ethnic origins into their tribes, thus making their migrations huger and huger. It is said that the ''Bantu expansion was one of the most significant human migrations and cultural transformations within the past few thousand years.''
I cannot seem to have enough despite the amount of literature on this subject that I consume..
Well, its not a book, but Steven Ambrose has some interesting papers comparing haplo groups and language families. This would be migration on a global scale. I cdon't think that I could pin down a single book or migration though.