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!