It's a great book. Covers just about everything in biogeography section of Paper 1 Part A of UPSC geography optional. The soils chapter isn't as detailed as I had hoped. But otherwise, great book, go for it. Almost every PYQ is doable.

Very much helpful

A very good book for upsc geography (biogeography) optional but some topics of environmental geography are also ther which make this book useful for same

Nice