Under the influence of today’s computer-oriented culture, publishing for children has taken on a flashy new look that emphasizes illustrations and graphic design; the resulting lack of substance leads to books that are short-lived items covering mainly trendy subjects.
Information
Causal Difference-Maker (under the influence) Because of the modern computer-oriented culture, children's publishing has a flashy new look that emphasizes illustrations and graphic design.
Causal Chain (resulting / leads to) Flashy new look lack of short-lived emphasizing ⇢ substance ⇢ lifespan w/ graphics trendy topics
The last sentence doesn't have any causal connector language attached, so I wouldn't want an answer to try connecting this last sentence to the stuff in the first sentence, but it does offer a few comparative differences with older children's publishing.
We know that today's children's publishing is more likely to have humor, less likely to have complexity, and covers a less wide range of topics.
Evaluate / Goal
The correct answer will probably reinforce the causal connections identified in the first sentence.
Computer culture led to a flashier look, which led to a lack of substance, which led to short-lived books that cover trendy (not timeless) subjects.