study material 3rd edition vs 2nd edition

NathanielTurnerNathanielTurner Posts: 29Member ■□□□□□□□□□
Whats the diff btw the 3rd and 2nd edition cisco books by odom
i have the so called 3rd edition for 640-822 and getting the one for 640-816 later
now i read that a new edition is coming out but it has the 2nd edition books
forgive me if this has been posted b4 but can someone explain this to me
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