Hi,
Attaching some which I know, may be better books are available. Comments are welconme.
1. Digital Integrated Circuits, by Jan M Rabay
2. Digital Design: Principles and Practices by John F. Wakerly
3. A Verilog HDL Primer, by J. Bhasker
4. HDL Chip Design : A Practical guide for Designing, Synthesizing and Simulating ASICs and FPGAs using VHDL or Verilog
by Douglas J. Smith
5. Digital Logic Circuit Analysis and Design by Victor P. Nelson, With J. David Irwin, With Troy H. Nagle
6. SOPC Edition. Rapid Prototyping of Digital Systems by James O. Hamblen
7. PCB Design for Real-World EMI Control, Bruce Archambeult
8. Complete PCB Design using Orcad Capture and Layout, by Kraig Mitzner
-Paul