TCP and UDP

The quick and easy answer is IP. Both TCP and UDP ride on IP. IP books are available everywhere. A good title for beginners is "teach yourself IP in 14 Days". It does a good job of explaining the ins and outs of the protocol and has information about transport layer protocols and how they relate to upper layer functionality.

You need to provide a little more detail in your question, relating to the context you are using. Are you looking for a protocol that provides a combination of the functionalities of both? If you are asking for applications that use both for transport, then the answer is many, but you need to ask in greater specificity.

TCP and UDP are both protolcols used by IP. Any other protocols (FTP for example) are either one or the other. Find a reference of the OSI model and you'll see what I'm talking about.

You should probably look into FTP as it can be a pretty secure way of transferring files. But nothing beats a nice Check Point VPN!