Local Author books over Reference books

Y do ENGINEERING students always prefer local author books than
REFERENCE books..?
'Jack & Jill went up the hill to fetch a pail of water, Jack fell down and broke his crown and Jill came tumbling after'
'2 humans ascended a certain geological protuberance to collect hydride of oxygen whose quantity is not specified. One member Jack, of rapid irregular disturbing movements encounters fatal logical gravitational error leading to complete disarray. Other member named Jill whose scope lies within disarray, descends down the geographical protuberance at an acceleration, whose magnitude is controlled by the force of gravity.' !!!       😰😂😂😋