Developing Reading Skills: A Practical Guide to Reading Comprehension Exercises (Cambridge Language Teaching Library) by Francoise Grellet (1981) Paperback
This book is a really good introduction for teachers about reading comprehension exercises. However, there are a few flaws. There should be a new edition including more modern topics, new types of activities (emails...) and the last but not the least taking in consideration more students dealing with special needs (dyslexia...)