Today I am recommending some books for CCNA, Which will help you to enhance your skills and get certified in few months, All books are amazing you can buy and start reading any one book, I recommend to buy From Amazon or any local shopkeeper.
My first choice is CCNA by Todd Lammle, but if you are beginner, start with our Online Training to kick start your career in IT networking.
Few of the topics i loved most are from this book :-
1. Troubleshooting TCP/IPs
3. InterVLAN routing
4. Enhanced IGRP
Second book i recommend CCNA Richard Deal.
Apart from this, You should know about TCP/IP basics if want to learn core basics of Networking.
You can contact us for live online training, Our trainers are Real IT network engineers, you can join our Group or One to One Training.