DK
The Science of Sleep
The Science of Sleep
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ABOUT
Heather Darwall-Smith's message in this book is simple: don't panic!
Humans are biologically programmed to sleep, and by interrogating all the factors - sociological, physiological, neurological, and psychological - that might be impeding this innate instinct, each of us can work out the changes we can make in our own lifestyles to allow ourselves to sleep naturally again.
This book demystifies the bewildering data around sleep by combining science with natural self-help techniques.
Inside the pages of this illustrated guide to sleep, you'll discover:
- A visual approach to understanding the science of why and how we sleep through info-graphics, graphs and diagrams that unpick the data and present the facts in an easy-to-follow format.
- Proven techniques and strategies for better sleep from the author - based on extensive clinical practice and drawing on the most up-to-date evidence from scientists around the world.
- The latest research and evidence to debunk the myths and misconceptions around sleep.
Heather Darwall-Smith has combined her research findings, clinical expertise, and curated techniques to create a uniquely visual approach to explaining the interrelated factors that make up our sleep habits. She also provides natural techniques to deal with these underlying causes. Humans are biologically programmed to sleep, Heather encourages each of us to work out the changes we can make to our lifestyles to nourish our body clocks for us to sleep naturally again.
The Science of Sleep provides in-depth answers to questions about sleep challenges and exposes myths and fads using science that is accessible to all. Armed with facts, this book equips readers to take control of their choices, understand and transform their sleep habits one night at a time.
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STANDARD, PRIMARY, DM AND VARIANT COVERS
Standard and Primary covers are widely available through general retailers. They often have higher print runs and can be cheaper, especially during sales.
In contrast, Direct Market (DM) and variant covers are primarily sold in comic shops. DM editions tend to have more limited availability and may be more valuable to collectors.
The main differences lie in artwork style, availability, price, and collector appeal. Ultimately, the choice between standard and variant covers depends on personal preference, budget, and individual collecting goals.
PRODUCT TYPES
Comic book enthusiasts have various formats to choose from when collecting their favorite stories.
Here's a brief overview of the main types:
Omnibus
- Large, hardcover collections
- Usually contain complete runs or extensive story arcs
- Typically 800-1000+ pages
- Higher price point, often €100-€150
Oversized Hardcover (OHC)
- Similar dimensions to omnibus, but thinner
- Collect shorter runs or story arcs
- Usually 300-600 pages
- Priced between €30-€50
Hardcover (HC)
- Standard-sized hardcover books
- Collect 6-12 issues typically
- Similar dimensions to single issues, but with a hard cover
- Priced around €25-€35
Trade Paperback (TP)
- Softcover collections
- Standard comic book size
- Usually collect 4-6 issues
- Most affordable option, typically €15-€25
Other Formats
- Absolute Editions: Oversized, deluxe hardcovers (mainly DC Comics)
- Compendiums: Massive paperback collections
- Graphic Novels (OGN/GN): Original stories not previously released as single issues
The choice between these formats often depends on personal preference, budget, and collecting goals. Omnibus and OHC editions offer larger artwork and more content but at a higher price, while TPs provide a more affordable way to collect complete story arcs