Our recommended Route is 3 nights tenting on the Trek, plus 2 nights in a hostel in Aguas Calientes.
5 nights total on this adventure.
What guidebooks do you recommend?
Lonely PlanetTrekking in the Central Andes. LP is our favourite hiking guide, by far. Be sure to get the most recent edition as it is frequently updated.
There are hundreds of books on Machu Picchu. Browse the book shops when you get to Cuzco for a souvenir book which also serves as a guidebook for touring the ruins.