for graphic design is more like practical..the more you design, you will improve your skill.Look out the pro designers outside and learned from their design and look for some tutorials..
Amazon would be more helpful than a webmaster forum in this regards: http://www.amazon.com/s/ref=nb_ss_g...words=logo+graphic+design&Go.x=0&Go.y=0&Go=Go That said, no book will be able to build up your skills and creativity than doing actual work.