Hello,

Below I have mentioned some of the best books for SBI PO preparation:

• Comprehensive Guide to SBI Bank PO Preliminary & Mains Exam (8th Edition): Disha Experts
• Quantitative Aptitude for Competitive Examinations: R.S. Aggarwal
• A Modern Approach to Verbal and Non-Verbal Reasoning: R.S. Aggarwal
• Word Power Made Easy: Norman Lewis
• Analytical Reasoning: MK Pandey
• Banking Awareness: RPH Editorial Board
• Objective Question Bank of Computer Awareness for General Competitions: Arihant
• English:  High School English Grammar and Composition by Wren & Martin

Good Luck