Second year engineering books in PDF format List: 1)Signals and System: a)Ashok Ambardar b)Simon Haykin c)Signals and Systems made Ridiculously simple d)Alan Oppenheim e)Schaum's series 2)Analog Communication a)Electronics communication Systems:Kennedy and Davis b)Communication Systems by Taub Schilling c)Simon Haykin 3)ECAD a)Boylsted b)Donald Neamen c)Ghodse Bakhshi 4)Applied Maths a)H K Dass:Z transform,Matrices,Special Functions b)Iyengar:Special functions c)Kreyzig :Advanced Engineering Mathematics d)G.V.Kumbhojkar :Sem 3 Those who are interested kindly subscribe for free and reap the benefits of all the above PDFs.