Hi Padma, If only it was so simple that one book would do! The library you choose depends on how deeply you want to go into the theory. I can personally recommend the following books - all of which are on my bookshelf. The following three are easy to understand, and cover some important principles of PCB design. If money is an issue, at least the first two should be considered: Signal Integrity Issues and Printed Circuit Board Design Douglas Brooks Prentice Hall, 2003 ISBN 0-13-141884-X ( http://www.ultracad.com/prenticehall/prentice%20hall.htm ) Signal Integrity Simplified Eric Bogatin Prentice Hall PTR (September 22, 2003) ISBN-10: 0130669466 ISBN-13: 978-0130669469 ( http://www.bethesignal.net/bogatin/bookinfo.php ) Right the First Time, A Practical Handbook On High-Speed PCB And System Design By Lee W. Ritchey and John Zasio ( http://www.speedingedge.com/Products.htm ) For a complete discussion of PCB layout, design, and fabrication, one of the old standards is: Coombs' Printed Circuits Handbook Clyde F. JR. Coombs McGraw-Hill, Hardcover, 5th Bk&CD edition, Published August 2001 ISBN 0071350160 ( http://www.bookpool.com/sm/0071350160 ) (Amazon also has some used editions) If you want to go more deeply into the analysis and theory, the following two are considered the "bibles" of high speed design. The website also has free notes and papers that cover many aspects of PCB design. It's worth browsing the articles. High-Speed Digital Design, A Handbook of Black Magic Howard W. Johnson and Martin Graham Prentice Hall, 1993; ISBN 0-13-395724-1 Advanced Black Magic Howard W. Johnson and Martin Graham Prentice Hall, 2003; ISBN 0-13-084408-X ( http://www.sigcon.com/ ) I can add one more with a caution. The following book has very good information in a style that is easy to understand. However, the book suffers from poor editing. There are many typographical and grammatical errors, and the limited index has the wrong page numbers - you have to subtract 13 from the listed page numbers to get to the actual page you want. I've been in contact with the author, and he plans to reprint the book with more care in the second edition. I still consider the book to be worth the time for beginning to intermediate PCB designers because of the contents. Signal Integrity for PCB Designers Vikas Shukla Reference Designer, Inc. ISBN 978-0-9821369-0-4 (<http://www.amazon.com/Signal-Integrity-Designers-Vikas-Shukla/dp/0982136900/ref=sr_1_2?ie=UTF8&s=books&qid=1250896942&sr=8-2>http://www.amazon.com/Signal-Integrity-Designers-Vikas-Shukla/dp/0982136900/ref=sr_1_2?ie=UTF8&s=books&qid=1250896942&sr=8-2) $40 used, $55 new If you bought all of them, you would be looking at an investment of several hundred dollars. My recommendation would be to start at the top of the list and work down to build a library. You should read the brief descriptions, and decide what looks best for your needs. Regards - Harry At 04:59 PM 9/10/2009, padma gundala wrote: >Hi Experts, > >Can someone recommend a v. good book for PCB design for an engineer's use, >if I had to buy just one book only. > >Thanks, > >Padma ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu