Hi, if you are just starting with ur prep, the below books will be of good help -
These 3 books i'l say are a must have:
OG11
Princeton review - for a basic overview of Gmat
Manhattan SC guide - highly recommended to ace the SC
Good to have -
Gmatclub challenges - helpful if you aspire for 49+ Q score
Elements of Style - to get a bit deeper into english grammar
For practice:
1000s series of SC/CR/RC/PS/DS - u shd be able to get em in this forum
gmatter software - highly helpful !
G'luck