Former Big Spring resident has book published

May 13, 2011

HERALD photo/Thomas Jenkins Former Big Spring resident Mark J. Silen has had his book “The Perfect Time, the Universal Calendar” published. The book details a simple method of marking time. The system consists of 52 weeks, times 7 days equals 364 days.

Former Big Spring resident Mark J. Silen has had his book “The Perfect Time, the Universal Calendar” published. The book details a simple method of marking time. The system consists of 52 weeks, times 7 days equals 364 days. Silen is a resident of San Angelo. His book is available online and at most major bookstores.