Frank Loren

Best Gift For Mother Who Loves Puzzles: The Best Mathematical and Logic Puzzles  Frank Loren Paperback. Independently Published, 2018-01-01 ISBN 9781977013941     Gift for Dad from Daughter: The Best Mathematical and Logic Puzzles  Frank Loren Paperback. Independently Published, 2018-01-01 ISBN 9781977014030     Tatami Logic Grid Puzzles: 200 Logic Puzzles with Solutions  Frank Loren Paperback. Independently Published, 2018-01-01 ISBN 9781977037848     Linesweeper - Brain Teaser Level 12: 200 Difficult Brain Teasers  Frank Loren Paperback. Independently Published, 2018-01-01 ISBN 9781977048400     Gift for Dad from Kids - Logic Games Workbook: 200 Logic Games for Adults  Frank Loren Paperback. Independently Published, 2018-02-01 ISBN 9781980224402