The research work of this book presents the theoretical and mathematical analysis and the simulation results (based on the well known power full software of world fame known as PSpice) of "Design and Development of Analog Signal Processing /Generation Circuits". The main purpose of this research is to design and develop new analog signal processing/generation in both current mode (CM) as well as in voltage mode (VM) using less number of passive and active components. It has reported a new analog signal possessing circuits with advantageous features which are not available in the earlier reported topologies.The entire research work of the thesis is confined to the filter circuits, oscillator circuits and inductor simulator circuits in the current mode and voltage mode. The work leads to the new and improved oscillator and filters circuits for the use of communication, instrumentation and in many areas of the analog signal processing. The achievement of each proposed circuit has been demonstrated by comparing the responses obtained using simulation with the results acquired theoretically. Sensitivity analysis is also carried out for each circuits and it was noticed that the entire value of sensitivities is less than or equal to one. Electronic controllability/tunability is one of the main features of some of the designs and uses of the grounded capacitor make the circuits most suitable for integrated circuits implementation. Before going to present the details of research work done, it seems necessary to throw light on some of the prominent advancement which have been taken place in the research field of analog signal processing circuits, during the last two decades, with prime attention on those areas which have come into existence.