Can you turn 150 pages into a 5 minute presentation before a meeting?

Personally yes, I could as I have worked on sakes and marketing, so gave many presentations on a variety of subjects.

Now working as an English language teacher I teach students to give presentations to get good exam results and am currently teaching Algerian trainee pilots to give presentations, describe a photo, read a taxt and summarise it and to answer questions on all 3 disciplines.

If necessary send something to everyone in advance again with highlights you want to emphasise or hand something out at the end.

NASA Spots Strange Towering Shape Breaking Through Mars’ Atmosphere - The Daily Galaxy

Lots of the writing will be blah blah blah so ignore it. It's the who, where, when, why and how much that counts, usually.

Use diagrams or photos with simple key points

Failing to prepare is preparing to fail, and I fear that is your problem! You are overwhelmed and don't have a clue where to start.

I've never read the book. What did Dorian Grey do that was so immoral and sinful?

With no knowledge of the subject, or your level of English, giving presentations and editing it's hard to say!

Control the room by starting I am xx here to discuss xxx and will answer questions at the end of my presentation.

Use the 4 point plan. Introduction, good points, bad points and conclusion.

NASA Pulls the Plug on Europa Lander, but Scientists Propose a Plan B - Gizmodo