🚀 go-pugleaf

 >>    I am a user of TCP/IP and we'll have an connection to the OSI
 >>world. Douglas Comer wrote a wonderful book introducing TCP/IP.
 >>Is there any good book introducing OSI for novices. Thanks.

yes, 
Data Communications Computer Networks and Open Systems, by Fred
Halsall
Addison Wesley, 
make sure you get the 3rd edition (1992)
ISBN 0 201 56506 4
 
its very clear, very up to date, un-partisan and yopu can even get the
overhead transparencies

for a more implementation oriented book (but assumes a lot of
pre-knowledge) the Open Book by mtr is the best
as mentioned by others

 jon