Paul Black 
Testing: Friend or Foe? [PDF ebook] 
Theory and Practice of Assessment and Testing

Owing to daily work pressures and concerns, many teachers have little opportunity for considering and furthering their understanding of different issues surrounding assessment. Written in a user-friendly, jargon-free style, this text provides the reader with points of growth or change in the field of assessment. Each chapter in the text ends with a section on questions/exercises and further reading.