Is Jiang Haokai's book easier to learn than Tian Yingzhang's?

Jiang Haokai's books are harder to learn than Tian Yingzhang's. Tian Yingzhang's hard-pen calligraphy has a good grasp of the structure, balanced and symmetrical characters, precise strokes and moderate focus. Tian Yingzhang's hard-pen regular script, with its complete and mature theoretical system of techniques, plus its font structure, stroke characteristics and other advantages, has become the first choice for many hard-pen calligraphy beginners.