I have uploaded to the sandbox 'tti' directory version 1.0 of the TTI library. The TTI library, which is an abbreviation for the Type Traits Introspection library, allows a programmer to introspect at compile time the inner elements of a C++ type. The introspection process depends on specifying the name of the inner element by different macros for different types of elements, and then using a generated metafunction to determine whether that element exists within the enclosing type. The inner elements which can be introspected are type, class template, member data, member function, static member data, and static member function. The TTI library is based on the type_traits_ext portion of the Concept Traits Library, with improvements and additions, and also lifts functionality, for the purposes of orthogonality, from Boost.MPL regarding introspection of types and templates. The purpose of the library is to provide a consistent set of interfaces for doing compile-time introspection which other template metaprogrammers can use in their code. There is a readme.txt in the top-level sandbox tti directory, for anyone browsing the sandbox for interesting libraries, which replicates what is written here. There is a build.txt file in the doc subdirectory for building the documentation and running the tests. The documentation is also included as part of the sandbox files for those who can not build the docs. There is a list of todo items in the sandbox on which I will be working for the next release, but the library is already feature rich. The library has been tested and works with gcc 4.30, 4.4.0, 4.5.0-1 and VC++ 8.0, 9.0, and 10.0. It may also work with other compilers. There is a bug in versions of gcc prior to version 4 for which I will attempt to find a workaround if it is deemed important, which prevents it from working with the library. Questions, comments, suggestions, and bug reports are all welcome.