As Hajj is around the corner, I wish to know if there is any particular book which would help me with falsafa -e- Hajj? kindly suggest how do I prepare myself for Hajj-e-baiytallah?

There are two areas you need to prepare for
1. Spirituality of hajj
2. Jurisprudence of hajj

For the jurisprudence of hajj
Kindly visit
http://www.saba-igc.org/Hajj/ManasikHajj-Sistani.pdf
And for spiritually and philosophy of hajj kindly visit
Al-Islam.org