What is this Little Envelope in My Mailbox?!?!

I just got home and was checking my mailbox; I was happy to find a small mystery envelope from Louis Vuitton! I was thinking was it a catalogue which cannot be as they shouldn’t be this small! When I opened it, I found a small silver Louis Vuitton book containing many contents from the history of Louis Vuitton, craftsmanship, its collection and services which includes special orders. I just LVoe this little book and wanted to share with you guys ^^

Images: Louis Vuitton