This text provides a variety of circuits to be designed on screen, tested and modified before being committed to a PCB layout. The book offers modules to be attempted using the accompanying CD-ROM, which lets the student or beginner carry out projects or invent a complete circuit. Using the files, modifications can be made, or values altered. Each section of the text covers a particular area: simple transistor circuits are discussed, followed by modules based around op-amps; a section on logic gates includes monostable/bistabel/astable multivibrators; and special ICs are also covered (including the NE555). In conclusion, the transfer from circuit diagram to a layout on PCB or stripboard is explained, with examples of each.