Here are some of CLAT preparation books you can pefer given below:

    Word Power Made Easy by Norman Lewis

    English is Easy by Chetnanand Singh

    Butterworths Lexis Nexis

    Analytical Reasoning by M. K.Pandey

    Verbal Reasoning by R.S. Aggarwal

    Objective Arithmetic by R.S. Aggarwal

    Analytical and Logical Reasoning by R.S. Aggarwal

    GK Today

    Manorama Year Book

    India Year Book

    Universal’s LLB Entrance Guide

You can also refer the below given article for the further information.

https://law.careers360.com/articles/clat-2019

Good Luck!