This book covers eighteen common mistakes found in profiles which will keep you from having an effective LinkedIn profile. Shopbop Designer Fashion Brands. I’ve worked hard to provide the latest information on every aspect of LinkedIn, along with links to resources for additional information. Best of all, she writes and presents with grace and humor. It was nice to have it all together, but truthfully I wouldn’t buy this book or recommend someone to buy it. Get answers to your money questions delivered to your inbox daily! Sandra Long.