"Introduction to mathematical background of CAD/CAM/CAE", a book written by Dmitry Ushakov, the Chief Technology Officer at LEDAS Ltd. was published by LEDAS. It contains a short description of lectures organized by Common Informatics sub-faculty of IT department of Novosibirsk State University with the support of LEDAS Ltd. The hard-cover book contains 180 pages and includes 60 pictures. It can be be useful for CAD/CAM/CAE/PLM developers, scientists, engineers, and all people interested in modern tendencies of computer-aided industry.