Cookbooks are meant to whet your appetite and teach you how to make a scrumptious sounding dish that tastes as good as it looks.

But these recipe books are more likely to put you off your dinner than encourage you to whip up a gourmet feast.

These are the strangest and often most tasteless cookbooks ever made, from 'Cooking With Poo' to '50 Ways To Eat Cock'.

These photos show the strangest and often most tasteless cookbooks ever made - but not all are as they appear. Cooking with Poo is actually about cooking with 'crab' - the Thai word for which is poo

One author has been creative with the title of their chicken recipe book (left), while the book on the right shows you how you can cook with animal testicles if you were so inclined

'Microwave For One' may be the saddest cookbook to ever be published (left), while The Unofficial Lazy Slut Cookbook (right) is perhaps not the best present to give to your mother-in-law.

One of the most alarming cookbooks ever made is 'Cooking with Poo' by Saiyuud Diwong.

But the contents are much less disgusting than the title suggests. 'Poo' is just the Thai name for crab.

One author has been creative with the title of their chicken recipe book, calling it '50 Ways to Eat Cock,' while another has come up with recipes all using animal testicles.

'Microwave For One' may be the saddest cookbook to ever be published, while The Unofficial Lazy Slut Cookbook is perhaps not the best present to give to your mother-in-law.

Cooking To Kill is thankfully a joke cookbook (left) but The Un-Constipated Gourmet is not - this is one you may not be proudly displaying on your bookcase

These two cookbooks teach you meals that you can cook with your roadkill and freshly hunted animals

This cookbook teaches you how you can cook with semen, but the recipes may be a little salty

Alzheimer's and the Holocaust are not topics that naturally pair with cooking but there are in fact two cookbooks dedicated to these two subjects

One cookbook teaches you how you can cook with semen - but the recipes may be a little salty.

Two more are based on hard-hitting topics that you would never normally associate with cooking - the Holocaust and Alzheimer's disease.

And it's very thankful that Cooking To Kill: The Poison Cookbook is a joke cookbook.

This blunt cookbook gets straight to the point about who it is targeting

These books are proof that even recipe books can be sinister as they teach you how to make meals beloved by serial killers

This book takes a rather unusual approach to weight loss, with a focus on Christian belief

Oven broken? You can cook a meal on your car engine according to one book, while another shows you how to cook heavy metal-inspired recipes

Insects are set to be a food trend for 2017 so you may need The Eat A Bug Cookbook (left) while Coolio promises to teach you how to make five star meals for a 'one-star price'