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The Electronic Engineer's wish list
Engineering Mathematics: A Foundation for Electronic, Electrical, Communications and Systems EngineersEngineering Mathematics: A Foundation for Electronic, Electrical, Communications and Systems Engineers by Dr Anthony Croft
Buy new: £33.49 / Used from: £27.99
A very good easy to understand Maths book
Digital CommunicationsDigital Communications by Ian Glover
Buy used from: £33.99
A good grounding in digital communications
Op Amp Applications Handbook (Analog Devices Series)Op Amp Applications Handbook (Analog Devices Series) by Walt Jung
Buy new: £40.85 / Used from: £31.04
How to design linear circuits by analog devices
Op Amps for Everyone: Design ReferenceOp Amps for Everyone: Design Reference by Ron Mancini
Buy used from: £44.39
The best introduction to linear circuits and opamps
Foundation Maths (EMFS)Foundation Maths (EMFS) by Dr Anthony Croft
Buy used from: £22.00
Good foundation maths book
Mathematics - The Core Course for A LevelMathematics - The Core Course for A Level by L Bostock
Buy new: £22.69 / Used from: £1.94
The best A-Level maths text book ever
Network AnalysisNetwork Analysis by M.E.Van Valkenburg
Buy used from: £3.52
The best book if you want to understand control, lapace, partial fraction, fourier or network equations
The Designer's Guide to VHDL (Systems on Silicon)The Designer's Guide to VHDL (Systems on Silicon) by Peter J. Ashenden
Buy new: £39.94 / Used from: £4.57
A good VHDL book
The  C Programming Language (2nd Edition)The C Programming Language (2nd Edition) by Brian W. Kernighan
Buy new: £19.17 / Used from: £13.00
The first C reference