Liu Mengxue, under the name of Shaanxi Weinan, and graduated from the University in 1982, 1989 graduated from the Bachelor of philosophy, Chinese culture academy "comparative cultural study class", had served in the air force, organs, institutions, cultural scholars, famous calligrapher. Is now a national celebrity calligraphy art association member, Chinese contemporary painting and Calligraphy Association, a member of Chinese art society, China Calligraphy Association, member of Shaanxi Calligraphers Association, Beijing Haiyue calligraphy education television director, Chinese "ink painting", "famous lecture" column signing artists, British Art Institute of Oxford.

In recent years, has been successfully held calligraphy exhibition, works in the "political daokan", "Chongqing world" and other journals, repeatedly won the national silver medal, gold medal, international calligraphy League and the grand prize, the ACFTU painting and Calligraphy Association awarded the "Chinese patriotic artists", "international famous painting", "Chinese people's pride of the artist" honorary title, won the 2015 National Poetry Calligraphy and painting elite, 2016 China brand art figures list 2017 China brand calligrapher, good brand innovation of the year ten calligraphers, China good art characters influence brands on the list of 2017 ambassadors, "Republic Hero ten" red inheritance character "".

刘孟学，笔名河山，陕西渭南人，1982年大学毕业，哲学学士，1989年毕业于中国文化书院“中外比较文化研究班”，曾服役于空军部队、机关、院校，文化学者，著名书法家。现为全国名人书画艺术界联合会委员、中国当代书画名家协会会员，中国艺术学会会员，中国硬笔书法协会会员，陕西省书法家协会会员，北京海悦书画院理事，中国教育电视台“水墨丹青”、“名家讲堂”栏目签约艺术家，英国牛津艺术学院博导。

近年多次成功举办书画联展，作品在《政工导刊》、《重庆与世界》等杂志发表，多次荣获全国、国际书画联赛银奖、金奖、特等奖，被中华全国总工会等书画协会授予“中华爱国艺术家”、“国际书画名人”、“中华骄傲人民艺术家”等荣誉称号，获2015全国诗书画精英人物，2016中国好品牌艺术人物榜品牌影响力书法家，2017中国好品牌年度创新十大书法家，中国好品牌上榜影响力艺术人物形象大使，2017“共和国红色传承功勋人物《十大人物》”。