Available from Juniper Books, the Historical Documents Set is a beautifully bound set of some of the most influential writing from the early days of the republic.
The series of eight volumes contains material by Alexander Hamilton, Benjamin Franklin, Thomas Paine and Alexis de Tocqueville, as well as a two-part collection of the debate on the Constitution.
If this $375 set is a bit out of your price range, Juniper Books has other wonderful collections for the book lover in your life, as does the Folio Society.
Attribution: Photo from Juniper Books.