Cuba is widely recognized for its social achievements including health care, education, social security, subsidized food and other benefits and opportunities, d

Leave behind all your doubt, worries, heartache, and anger, and ascend to your final destination: hope. The Unfinished Puzzle is a 50-day devotional which will

These logic puzzles provide entertaining variations on Gödel's incompleteness theorems, offering ingenious challenges related to infinity, truth and provabilit

This book will have you kicking yourself, slapping your forehead, and laughing out loud, not necessarily in that order. Filled with little teasers that have tri

Before the mid-seventeenth century, scholars generally agreed that it was impossible to predict something by calculating mathematical outcomes. One simply could