To understand electrical theory, it is important to have a grasp of trigonometry. Whether we are talking about single phase or polyphase power, trigonometry is a key concept. This textbook, divided into three sections, provides easy-to-understand and enjoyable lessons on trigonometry, vectors and AC generation for those training and working as electricians.

UnRoman Romans is a reader on socially stigmatized groups in ancient Rome: actors athletes, dancers, sex workers, and sexual non-conformists. This reader was created as part of a class and uses student-scholars who contributed parts of the reader as a course assignment. It contains out of copyright and original translations of ancient texts, along with introductions, glossaries, images and other explanatory material. This book is intended for use in upper-level academic studies and contains a number of very disturbing passages.

According to the author, the world did not need another introductory text in mass communication. But the world did need another kind of introductory text in mass communication, and that is how Understanding Media and Culture: An Introduction to Mass Communication was birthed.

本書では我々が指導している学生がテクノロジーを利用している時代に効果的な教育の指針となる基本的原理を検討する。どの教科も異なっており、どの指導員も各自の教育に取り入れるべき独自かつ特別なものがあることを理解しつつ、各教員が教育に関して決定するための枠組みを紹介する。本書によって、教員は学生がデジタル時代に必要とする知識やスキル、つまりITスキルよりもむしろ、学生に成功をもたらす学習に対して、思考や姿勢を深める助けとなることが可能である。（クリエイティブコモンズ帰属－非営利） / This is a translation of the book "Teaching in a Digital Age" by A. W. (Tony) Bates.