I’ve just fin­ished ORA:CLE by Kevin O’Donnell Jr. It’s about the fourth time I’ve read it! It is an amaz­ing book. Set in the far future, it involves a glob­ally linked data net­work, the pop­u­la­tion of earth con­fined to indoors while the streets are re-forested to com­bat CO2 excesses, an invad­ing race of ali­ens, brain implants, polit­ics, and hack­ing! Some of the con­cepts in the book are way ahead of their time (the story was star­ted in 1980).

Money-back guar­an­tees don’t count for very much if you’re dead before you can cite them. Computer-linked expert Ale wants to sur­vive 2188, but he still catches him­self mak­ing the mis­take of trust­ing elec­tronic gad­getry…
Someone is out to get Ale, and he is sure he knows who…

Highly recom­men­ded, although it seems to be out of print.