Todd Lammle is the best author for CCNA books. If you are a beginner in networking field and looking for a good book for study then it is a must read. The other two books are optional (Fast Pass & IOS commands) but they would help you to nail down the concepts.

If you are looking for advanced and in depth information then go for Cisco Press books.
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CCNA Quick Reference Sheets (Cisco Press)

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Todd Lammle Sybex CCNA 640-802 Study Guide 6th Edition

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Let this in-depth guide prepare you for the latest CCNA exam
Approach the CCNA exam (640-802) with confidence through the detailed preparation you’ll receive in this bestselling study guide from leading Cisco networking authority Todd Lammle. This new edition—updated to reflect the very latest changes in the CCNA exam—features expanded coverage of key topic areas plus new material on the latest switching techniques, network address translation, IPv6, and advanced OSPF.

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Todd Lammle CCNA: Fast Pass

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Organized by exam objectives, this is a focused, concise review guide that works hand-in-hand with any learning tool, including the Sybex CCNA: Cisco Certified Network Associate Study Guide, 6th and Deluxe editions.
The book will consist of four high-level chapters, each mapping to the four main Domains of the exam skill-set. The book will drill down into the specifics of the exam, covering the following:
*Designing Cisco internetworks
*Developing an access list
*Evaluating TCP/IP communication
*Configuring routers and switches
*Configuring IP addresses, subnet masks, and gateway addresses
*Performing LAN, VLAN, and WAN troubleshooting
*Understanding rules for packet control

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Todd Lammle’s CCNA IOS Commands Survival Guide

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To become a Cisco Certified Network Associate (CCNA), you must learn the hundreds of IOS commands used by Cisco routers and switches. This handy reference from Cisco networking authority Todd Lammle is just what you need to master those commands. From a thorough introduction to Cisco’s basic operating system to making the transition to IPv6, Todd Lammle walks you through hundreds of commands with short, to-the-point explanations and plenty of figures and real-world examples.

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Preplogic CCNA Mega Guide

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PrepLogic’s CCNA (640-802) Mega Guide contains all the information you need to know to pass Cisco’s CCNA Exam and features 27 practice questions. Topics covered by our exam guide include: Frame Relay Connections, Extending Switched Networks with VLANS, Point-to-Point Connections, Wireless LANs, IPv6 Address Format, and more.

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CCENT:ICND1 Study Guide By Todd Lammle(Exam 640-822)

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Start your preparation for Cisco’s new CCENT entry-level networking certification, your entry point into Cisco’s popular CCNA certification track. This comprehensive study guide from leading Cisco authority Todd Lammle thoroughly prepares you for the Interconnecting Cisco Networking Devices, Part 1 exam (640-822) and the start of a career, with pages of exam essentials, real-world scenarios, and hands-on exercises. Topics include the operation of data networks, how to implement both switched and routed networks, and much more.

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CCENT/CCNA ICND1 (Official Exam Certification Guide), Second Edition

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Wendell Odom, CCIE® No. 1624
CCENT/CCNA ICND1 Official Exam Certification Guide, Second Edition, is a best of breed Cisco® exam study guide that focuses specifically on the objectives for the CCENT™ and CCNA® ICND1 exam. This fully updated edition presents complete reviews and a more challenging and realistic exam preparation experience. Senior instructor and best-selling author Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. The material is presented in a concise manner, focused on increasing your understanding of e
xam topics and preparing you for the numerous challenges the exams present.

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CCNA ICND2 (Official Exam Certification Guide), Second Edition

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Wendell Odom, CCIE® No. 1624

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Cisco Press ICND1 Exam 640-822 (2nd Edition) (Uthorized Self-Study Guide)

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Steve McQuerry, CCIE® No. 6108
This volume is in the Certification Self-Study Series offered by Cisco Press®. Books in this series provide officially developed self-study solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations.
Interconnecting Cisco Network Devices, Part 1 (ICND1), Second Edition, is a Cisco®-authorized, self-paced learning tool for CCENT™ and CCNA® foundation learning. This book provides you with the knowledge needed to configure Cisco switches and routers to operate in corporate internetworks. By reading this book, you will gain a thorough understanding of concepts and configuration procedures required to build a multiswitch, multirouter, and multigroup internetwork that uses LAN and WAN interfaces for the most commonly used routing and routed protocols.

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Cisco Press ICND2 exam 640-816 (3rd Edition) (Uthorized Self-Study Guide)

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Steve McQuerry, CCIE® No. 6108
In Interconnecting Cisco Network Devices, Part 2 (ICND2), you will study actual router and switch output to aid your understanding of how to configure these devices. Many notes, tips, and cautions are also spread throughout the book. Specific topics include constructing medium-size routed and switched networks, OSPF and EIGRP implementation, access control lists (ACL), address space management, and LAN extensions into a WAN. Chapter-ending review questions illustrate and help solidify the concepts presented in the book.

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