http://www.beastpieces.com/2010/07/stitched-booklet-wedding-invitation/

A good narrative is behind good relationships. That’s why a booklet  telling a little bit of the couples story is extra special as a wedding  invitation. This invitation was designed by Craig Duffney at BBDO in New  York for his friends Amy and Adam. He did excellent work making two  sets of illustrated capitals and graphics. One corresponds with the  bride, the other with the groom and they co-mingle in the invitation  layout.

Planning out the production of a little booklet takes some extra  finesse beyond the standard wedding stationery. The format here is an A7  size booklet with a soft cover and french folded pages. The cover is a  heavier 110lbC Pearl White Crane Lettra. The gutt is lighter weight  80lbT Pearl White Crane Lettra. Both were letterpress printed in two  colors, a lighter green corresponding with the bride and an olive green  with the groom. The pages were scored, collated and top stitched inside  the cover with a cream colored thread. Then a final trim was taken from  head and foot. We also produced an RSVP card and matching folding thank  you cards. This is certainly among the more elaborate invitations we’ve  produced, yet the final appearance remains simple and striking.