"Demonic Mnemonics: 800 Spelling Tricks for 800 Tricky Words" by Murray Suid is a trade paperback book aimed at improving personal growth and memory through self-help techniques. This book offers readers a comprehensive collection of spelling tricks and mnemonics to help them remember and spell difficult words more effectively. With a focus on improving memory and language skills, this book provides a practical approach to overcoming spelling challenges and boosting overall vocabulary knowledge."