I waited for a long time before this became available in print. This book is a must for anyone who is interested to learn probability at an advanced level. This is perhaps the only book which gives a very concise introduction to the topic of "measure" (there are many popular books and online tutorials but they are too lengthy or lack focus). This book also has an excellent chapter on convergence and martingales. A must have for those doing applied research and for those who want a qu...