Recommend the best material/ books for LR & DI-CAT 2013

Pls recommend the best, solid books/ material for LR & DI Prep.There is a vast pool of material by so many authors.Suggest from past experience and peer reviews!

Pls recommend the best, solid books/ material for LR & DI Prep.There is a vast pool of material by so many authors.

Suggest from past experience and peer reviews!

hello friends..i just started preparing for CAT....i just want to know that..which book will be more helpful to self study ..easy language,and help more to get good percentile in CAT